The locations for three genes have been added to this cartoon. For clarity, the locations have only been noted on one chromatid. The lowest frequency of crossovers would occur between genes ____ and ____.
Answers
The locations for three genes have been added to this cartoon. For clarity, the locations have only been noted on one chromatid. The lowest frequency of crossovers would occur between genes a and b.
A cell generates a fresh copy of all of its DNA as it gets ready to divide, resulting in two copies of each chromosome in the cell. "Sister chromatids" refer to the two copies of the cell's original chromosome.
The two chromatids are torn apart during anaphase of cell division, and the chromatids are distributed among the cytoplasm of each daughter cell.
A vast quantity of DNA that is arranged physically into a single structure is called a "chromosome." Because of this, the "sister chromatids" are regarded as being separate chromosomes even though they are joined together. Each chromatid is thought to be its own chromosome once they are divided during anaphase.
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Related Questions
ATP can be produced as a by-product of the metabolism of glucose and several other substances. Which of the following substances are possible sources of ATP? Check all that apply. Triglycerides
Amino acids B vitamins
Alcohols Vitamin A and C
Answers
ATP (adenosine triphosphate) is a crucial molecule that serves as the primary energy source for various cellular processes. It can be produced from the metabolism of various substances, including glucose, triglycerides, amino acids, and alcohols.
Triglycerides are a significant source of ATP as they can be broken down into glycerol and fatty acids. Fatty acids undergo beta-oxidation, generating ATP through the Krebs cycle and oxidative phosphorylation.
Amino acids can also contribute to ATP production. They are first deaminated, and their carbon skeletons enter various points in the Krebs cycle or glycolysis, depending on the specific amino acid. This process ultimately leads to the generation of ATP.
Alcohols, specifically ethanol, can be metabolized to produce ATP. Ethanol is converted into acetaldehyde and then into acetate, which can enter the Krebs cycle to generate ATP through oxidative phosphorylation.
However, B vitamins, vitamin A, and vitamin C are not direct sources of ATP. B vitamins act as coenzymes that facilitate metabolic processes but don't generate ATP directly. Vitamin A is essential for vision and immune function, while vitamin C acts as an antioxidant and is necessary for collagen synthesis. Both play crucial roles in maintaining overall health, but they do not directly produce ATP.
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2. Compare the environment in which physical weathering is dominant to the
environment in which chemical weathering is dominant.
Answers
Answer:
chemical weathering is more dominant in the regions where there is abundant limestone rock.
Explanation:
hope this helps
In humans, free earlobes are dominant to attached earlobes, and a straight thumb is dominant to a hitchhiker's thumb. Cross two people that are heterozygous for both traits. Include a punnett Square
Answers
Answer:
nice pfp
Explanation:
explanation haikyuu
Easy question!!plss help!!!ASAP!!!
The_________
system transports oxygen and carbon dioxide through the
Body.
Answers
Answer:
circulatory system does that
Answer:
The protein inside (a) red blood cells that carries oxygen to cells and carbon dioxide to the lungs is (b) hemoglobin. Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen. It is the iron in hemoglobin that gives blood its red color.
Explanation:
60 milligrams=____kg?
4.5 centimeters=___km?
Answers
Answer:
60 milligrams= 6e-5 kg?
4.5 centimeters= 4.5e-5 km?
Explanation:
Evolution has wired the human brain to allocate more attention to __________________ stimuli. Evolution has wired the human brain to allocate more attention to __________________ stimuli.
Answers
Evolution has wired the human brain to allocate more attention to Dangerous or threatening stimuli.
Threat-detection mechanisms are expected to occur at a range of levels due to their evolutionary importance. A recent face recognition study reveals that when fresh stimuli are presented as fear-related, their processing is accelerated. This supports the existence of a sophisticated, context-sensitive threat-detection mechanism that is capable of adapting to the diverse and specific spatiotemporal characteristics of the environment.The evolutionary theory of emotion holds that our emotions exist because they play an adaptive function. People are more likely to succeed and survive when they respond swiftly to environmental cues as a result of emotions.learn more about threatening stimuli here: https://brainly.com/question/10608716
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What process led to the Earth gaining mass during its formation ?
Answers
Answer:
deposition
Explanation:
correct me if I'm wrong
Deposition is the process which lead to the increase in the mass of Earth during its formation. Deposition is the laying down of sediment carried out by wind, flowing water, sea or ice.
What is deposition?
The Earth is formed over 4.6 billion years ago out of a mixture of particles including dust and gas around the young sun. It grew larger due to countless collisions between the dust particles, asteroids, and other growing planets.
Deposition is the laying down of particles carried out by wind, flowing water, sea or ice. Sediment can be transported as pebbles, or as salts dissolved in water. Salts may later be deposited by organic activity such as evaporation.
The main factor in mass gain of the planet is in-falling material, cosmic dust, meteors, etc. These are the most significant contributors to Earth's increase in mass.
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How do spores survive even after the plant has died?
Spores are protected in a protective covering preventing it from drying out.
O Spores have special chemicals that prevent it from dying.
Spores are buried under rocks.
O Spores can naturally live forever.
Answers
Answer:
spores have special chemicals that prevent ot from
4
How does filtration occur during the formation of urine?
A.
Gravity forces large particles to filter through capillary walls of the glomerulus.
B.
Nephron tubes filter waste products and transfer them into the collecting tubules.
C.
Bowman's capsules collect dissolved substances and transfer them to the peritubular capillaries.
D.
Pressure causes water and dissolved substances to filter through capillary walls of the glomerulus.
Answers
The number of trophic levels in an ecological pyramid
A. Typically, does not exceed two trophic levels.
B. Is impossible to count because energy is lost at each trophic level.
C. Is limitless, because the sun does not stop producing energy.
D. Is limited by the amount of energy that is lost at each trophic level.
Answers
among the agta of the philippines, women not only gather, they also a. fish, while carrying their babies with them. b. are the primary warrior class, except when pregnant or breastfeeding. c. cultivate small food plots inside village defenses. d. hunt small animals and do some fishing. e. are the tribal leaders.
Answers
The Aeta are a nomadic people that only construct ad hoc, stick-and-leaf huts that are draped with palm leaves.Aeta communities and places with cleared mountains are now home to the more advanced Aetas.They reside in homes made of cogon grass and bamboo.
Describe about agta people?
The indigenous population of the nation has steadily declined due to mining, deforestation, illicit logging, and slash-and-burn farming, now numbering only a few thousand people.The Aeta have become very nomadic as a result of social and economic pressures on their culture and way of life, which had previously stayed constant for thousands of years, and the Philippine government offers them little to no protection. As hunter-gatherers, adaptation plays an important role in Aeta communities to survive. This often includes gaining knowledge about the tropical forest that they live in, the typhoon cycles that travel through their area, and other seasonal weather changes that affect the behavior of the flora and fauna in their location.Another important survival skill is storytelling. Like many other hunter-gatherer societies, the Aeta promote social values, such as cooperation, through stories. Thus, they highly value skilled storytellers.Aeta hunters, as depicted in the Boxer Codex (c. 1595).For many Aeta communities, the dry season means hard work.With the beginning of the dry season comes more hunting and fishing as well as swiddening the land in preparation for future harvest.Men and women in the Aeta community work together to clear the land, but women typically harvest the majority of the crops.They also conduct commerce with non-Aeta communities in the area at this time, either to sell the food they have collected or to hire them as temporary farmers or field workers.Women from the Aeta community participate more actively in economic dealings with non-Aeta communities, typically as dealers and field laborers for lowland farmersDifferent implements are used by Aeta cultures for hunting and gathering.Traps, knives, and bows and arrows with various arrow points for specific uses are examples of traditional tools.The majority of Aetas, including Aeta women, begin training for hunting and gathering at age 15.Most Aeta women prefer knives and frequently hunt with their dogs and in groups to maximize efficiency and for social purposes, whereas males and some women typically use the conventional bow and arrow.Males and females both engage in food collecting and fishing.Therefore, Aeta societies are more gender equal in both organization and practice.To learn more about philippines culture refer
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Indicate the correct order of steps for a broth to broth transfer. Rank the options below. Sterilize and cool inoculating loop, remove cap of culture tube, pass mouth of tube through Bunsen bumer flame. Remove a loopful of broth culture, pass mouth of broth culture tube through Bunsen burner flame, and replace cap on tube. Remove cap of sterlle broth tube, pass mouth of tube through the Bunsen burner flame, and insert inoculating loop into sterle broth. Pass mouth of broth tube through Bunsen burner flame and replace cap. Sterilize Inoculating loop and retum to loop holder.
Answers
The correct order of steps for a broth-to-broth transfer is as follows:
1. Sterilize and cool the inoculating loop.
2. Remove the cap of the culture tube containing the broth culture.
3. Pass the mouth of the culture tube through the Bunsen burner flame.
4. Remove a loopful of broth culture using the inoculating loop.
5. Pass the mouth of the culture tube through the Bunsen burner flame and replace the cap on the tube.
6. Remove the cap of the sterile broth tube.
7. Pass the mouth of the sterile broth tube through the Bunsen burner flame.
8. Insert the inoculating loop into the sterile broth.
9. Pass the mouth of the sterile broth tube through the Bunsen burner flame and replace the cap.
10. Sterilize the inoculating loop and return it to the loop holder.
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Which structure found in humans only in the embryonic stage shows that humans are related to other species?
Answers
Answer:
gill slits
Explanation:
gill slits is the structure which is only present in the embryonic stage of humans. The presence of gill slits tell us the information that humans are related to other organisms such as fish because fish has also gill slits in their embryonic stage. The gill slits only present in the embryonic stage and disappear when the embryonic stage is completed and new stage is started so we can conclude that gill slits is the structure which make the human resembles to other species.
Multiple Answer
Which of these is evidence for evolution?
a caterpillar changing into a butterfly
a tadpole changing into a frog
horse teeth becoming flatter over time in the fossil record
mutations in DNA
a chicken egg hatching
c. vestigial rear leg bones in whales
different shapes on Galapagos tortoises from different islands
a tailbone in humans
similar bone structure in whale flipper and human hand
Answers
Tadpole
Chicken
Which of the ways that humans impact the water cycle do you think is most damaging? What areas of the water cycle does it effect? How might the continuing use of these practices have negative consequences on our future?
Answers
There are several ways in which humans can impact the water cycle, and some of these impacts can be damaging.
What are the impact of humans on water cycle?One of the most significant ways that humans impact the water cycle is through the alteration of natural landscapes, such as through deforestation and urbanization. These activities can change the amount of water that is available in a particular area, as well as the rate at which water moves through the water cycle.
Another way in which humans impact the water cycle is through the release of pollutants into the environment. These pollutants can contaminate water sources, making them unsafe for drinking or other uses. They can also have negative impacts on aquatic ecosystems, which can in turn affect the water cycle.
Continuing to engage in practices that negatively impact the water cycle could have serious consequences for our future. For example, if we continue to alter natural landscapes and release pollutants into the environment, we may see more frequent water shortages and degraded water quality, which could have negative impacts on both human communities and the natural environment.
Hence, it is important to be mindful of the ways in which our actions can affect the water cycle, and to work to minimize any negative impacts.
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Who can answer this last one for me ??!
Genetic variation among the gametes of one individual is most likely to
increase if crossing over
A. happens during meiosis I.
B. happens after meiosis II.
C. involves different species.
D. involves sister chromatids.
Answers
Answer:
A. happens during meiosis I.
Explanation:
In meiosis I, homologous pairs align independently on the equator. All possible combinations of chromosomes can occur among the gametes. Genetic variation is increased by crossing-over. (union of female and male gametes) produces random combinations.
What are the new cells called and how do they compare with each other?
Answers
Answer:
The original cell is called the mother cell and the two new cells are called daughter cells.
Explanation:
The mitotic (M) phase and cytokinesis (C phase) together are called cell division, the division of the parent cell (original) into two daughter cells (new cells), each with the same genetic information (chromosomes) as the parent cell. Mitosis does NOT occur in prokaryotic cells that do NOT have a nucleus. (tesd. net)
The nucleus divides during mitosis, while the cytoplasm divides during cytokinesis. The two new cells are referred to as daughter cells.
What is daughter cells?Diploid cells are the daughter cells of mitosis. Diploid cells have two complete chromosome sets. Mitosis creates no genetic diversity in normal healthy cells because the daughter cells have exact copies of their parent cell's DNA. Either of the two cells formed when a cell divides through mitosis. Because they have the same number and type of chromosomes as the parent cell, daughter cells are genetically identical. Daughter cells are formed by the division of a single parent cell. They are produced by the mitotic and meiotic division processes. Cell division is the reproductive mechanism that allows living organisms to grow, develop, and reproduce.To learn more about daughter cells, refer to:
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the conchae question 53 options: provide a increase in surface area for the sense of smell. create turbulence in the air to trap particulate matter in mucus. provide an opening to paranasal sinuses. divide the nasal cavity into a right and a left side. provide an opening into the pharynx.
Answers
The following statement is true about the conchae: "They create turbulence in the air to trap particulate matter in mucus." Option B is correct.
The nasal conchae, also known as the turbinates, are bony structures within the nasal cavity that extend from the lateral walls towards the septum. They help to increase the surface area of the nasal cavity, allowing for more efficient warming and humidification of the air before it reaches the lungs.
Additionally, the conchae create turbulence in the air as it passes through the nasal cavity, which helps to trap particulate matter in mucus, allowing it to be removed from the respiratory system. The mucus is produced by goblet cells in the epithelial lining of the respiratory tract and is moved by cilia towards the pharynx, where it is either swallowed or expectorated.
Hence, B. is the correct option.
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--The given question is incomplete, the complete question is
"Which of the following statement is true about conchae. Options: A) provide a increase in surface area for the sense of smell. B) create turbulence in the air to trap particulate matter in mucus. C) provide an opening to paranasal sinuses. divide the nasal cavity into a right and a left side. D) provide an opening into the pharynx."--
Are there any circumstances in which the daughter cells produced should not be genetically identical?
Answers
Are the daughter cells produced by mitosis genetically unique substantive, cannot divide again substantive, have half the DNA of the parent cell substantive, and are genetically identical to each other?
Answer:
At the end of meiosis and cytokinesis, four haploid cells are produced from a single diploid cell. These haploid daughter cells have half the number of chromosomes as the parent cell and are not genetically identical to the parent cell.
when stroke volume decreases, which of the following could maintain cardiac output? a. general vasodilation b. decreased venous return c. increased heart rate d. decreased peripheral resistance
Answers
When stroke volume decreases, the factor that could maintain cardiac output is c. increased heart rate. This compensates for the lower stroke volume and helps maintain a consistent cardiac output.
When stroke volume decreases, one of the following could maintain cardiac output is increased heart rate. This compensatory mechanism ensures that the heart pumps more frequently to maintain the same amount of blood being circulated in the body. General vasodilation, decreased venous return, and decreased peripheral resistance are not effective in maintaining cardiac output in the presence of decreased stroke volume.
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what are examples of types of chemical markers associated with dna that determines when, where and by how much genes are expressed in each cell?
Answers
Some example of the chemical marker that is associated with DNA is epigenetic factors and histone proteins.
Epigenetic factors are compounds that regulate genetic expression. It works by causing changes in the gene, altering the way your body interprets a DNA sequence. These changes are temporary; they don't cause mutation nor they are heritable. Some forms of changes that are caused by epigenetic factors are methylation and DNA remodeling.
Histone proteins are proteins in eukaryotic cells that have dual functions: keeping the DNA in a compact form and regulating the tightening and loosening of DNA strands that regulate gene expression.
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25 points hurry plz thank you “What is the effect of the type of food available on the frequency of different types of bird beaks?” Hypothesis: If the type of food available changes, then…____________ …because…___________
Answers
Answer:
Explanation:
...then the bird beak changes because the bird beaks are the most vital physical feature that allows birds to catch and devous its prey.
Answer:
then... the frequency of different types of bird beaks will change, because... birds with beaks that are more suited to the available food are more adapted and will be more successful over time.
Explanation:
This is linked with natural selection.
If the type of the food available changes, then the frequency of different types of bird beaks will change, because birds with beaks that are more suited to the available food are more adapted and will be more successful over time.
Evolution of beak types will be a result of the birds adapting and changing their food habits. Natural selection is the process where organisms adapt and change.
conditions that activate the parasympathetic nervous system: question 142 options: a) a. slow the heart down and increase contractility. b) speed the heart up and decrease contractility c) slow the heart down and decrease contractility d) speed the heart up and increase contractility.
Answers
Your answer: Conditions that activate the parasympathetic nervous system (a) slow the heart down and increase contractility.
The correct answer to the question is: c) slow the heart down and decrease contractility. The parasympathetic nervous system is responsible for promoting rest and relaxation in the body. When activated, it slows down heart rate and decreases contractility of the heart muscle, leading to a decrease in the strength of each heartbeat. This allows the body to conserve energy and focus on other functions, such as digestion and healing.
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Which describes speciation? the adaptation of an extinct species the formation of a new species the extinction of an existing species the grouping of a species
Answers
Answer:
The formation of a new species
Explanation:
My extra notes. Good luck!
Answer:
A and C
Explanation:
100% on edg 2021
Which two products does a rabbit produce that allow the carrot it eats to make molecules used for energy?
d. Carbon dioxide and oxygen
C. Water and carbon dioxide
b. Glucose and water
a. Water and oxygen
Answers
Answer:
d. Carbon dioxide and oxygen
these are the products of cellular respiration, which are also the reactants that a carrot would use to carry out photosynthesis along with sunlight
44 At the rate of 125 ml of filtrate/minute, estimate the amount of filtrate formed in 24 hours. A. 45 liters B. 90 liters C. 125 liters D. 180 liters E. 200 liters
Answers
Answer:
D. 180 liters
Explanation:
The GFR is 125 ml/minute. 1 hour has 60 minutes so, 125 X 60=7500 ml will be the GFR in one hour. A day has 24 hours, so 7500 X 24=180,000 ml will be the GFR in one day. Hence 180,000 ml of Glomerular filtrate (GF) will be produced in a day.
the group that probably gices rise to chloroplasts is the
Answers
A cyanobacterial endosymbiont gave rise to chloroplasts, which replicate its free-living ancestor's ability to divide and multiply.
Organisms that symbiotically coexist with another cell or creature are known as endosymbionts. Others adhere to the surface of cells, while others are located inside cells (intracellular) (extracellular). Relationships that are symbiotic are those in which both parties gain. Endosymbiosis is a type of symbiosis in which the symbiont resides inside the body of its host; this symbiont is referred to as an endosymbiont in this situation. Rhizobium's partnership with plant legumes is an illustration of an endosymbiosis. The endosymbiont found in the roots of legumes is rhizobium. Essential eukaryotic organelles of endosymbiotic origin are mitochondria and chloroplasts. These organelles are divided by dynamic cell processes. Because it provides an explanation for how chloroplasts evolved, endosymbiosis is significant .Others adhere to the surface of cells, while others are located inside cells (intracellular) (extracellular).
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explain two ways in which world war ii affected agriculture. bolditalicunderlinebullet listá
Answers
World War II had a significant impact on agriculture across the globe. It resulted in changes in agricultural practices and the introduction of new technologies. Here are two ways in which World War II affected agriculture:
1. Increased demand for food: During World War II, there was a significant increase in demand for food to feed soldiers fighting in the war. The increase in demand put pressure on farmers to increase their crop yields, leading to the introduction of new farming technologies and methods to improve productivity.
Farmers started using tractors and other farm machinery to increase their productivity. They also used more synthetic fertilizers, pesticides, and herbicides to combat pests and weeds. These new methods and technologies helped farmers to increase their crop yields significantly.
2. Changes in labor force: Due to the war, many young men left the farms to join the military. This led to a shortage of labor on farms. In response, the US government created programs to encourage women to take up farming jobs and fill the labor gap.The government also recruited prisoners of war and migrant workers to work on farms.
These changes led to an increase in the number of women and minorities working in agriculture, paving the way for more diversity in the agricultural workforce. In conclusion, World War II had a significant impact on agriculture, resulting in changes in agricultural practices and the introduction of new technologies.
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Describe saturated fatty acids
Answers
Answer:
Hi!
Explanation:
Its a type of fat in which fatty acid chains,which are all single. They are called sauterated cause the second bond is broken!
Hope this helps! :D
why does an embryo not grow in size during the cleavage phase, despite the fact hat its cells are rapidly dividing?
Answers
During the cleavage phase, the embryo undergoes rapid cell division without increasing in overall size. This is because the cells in the embryo are dividing into smaller and smaller cells, without undergoing significant differentiation or growth.
Essentially, the embryo is dividing its mass into smaller and more specialized cells that will eventually form different tissues and organs. It is only after the cleavage phase that the embryo begins to grow in size as the cells differentiate and start to increase in size and complexity. Therefore, the cleavage phase is focused on creating a large number of specialized cells rather than increasing overall size.
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