the fibrous protein that winds along the groove of the f actin double helix and blocks the myosin-binding sites on the actin filaments is called
Answers
The fibrous protein that winds along the groove of the F-actin double helix and blocks the myosin-binding sites on the actin filaments is called tropomyosin.
Tropomyosin is a protein that is a type of fibrous protein. It is primarily found in muscle tissue and is involved in the contraction of muscles. It works by winding along the groove of the F-actin double helix, which helps to block the myosin-binding sites on the actin filaments.
F-actin double helix is a filamentous structure that is found in muscle tissue. It is composed of two types of proteins, actin, and myosin.
Actin is a globular protein that forms long, thin filaments, while myosin is a motor protein that moves along these filaments to generate the force required for muscle contraction.
A myosin-binding site is a region on the actin filament where myosin binds during muscle contraction. This interaction is crucial for the generation of force required for muscle contraction. By blocking the myosin-binding site on the actin filament, tropomyosin helps to regulate muscle contraction by preventing the binding of myosin.
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Related Questions
human chorionic gonadotropin (hCG)
The hormone produced by cells around the embryo that maintains the corpus luteum and pregnancy is called
Answers
The hormone produced by cells around the embryo that maintains the corpus luteum and pregnancy is called human chorionic gonadotropin (hCG).
Human chorionic gonadotropin (hCG) is a hormone that is produced by cells around the embryo, that is, trophoblastic cells that develop into the placenta, after fertilization. Its main function is to maintain the corpus luteum during the early stages of pregnancy. The corpus luteum is a temporary endocrine structure that develops after the release of an egg from the ovary, that is, after ovulation. It produces progesterone, which is essential for the maintenance of pregnancy in humans.
If an egg is fertilized by a sperm, the resulting embryo secretes hCG, which signals the corpus luteum to continue producing progesterone. This is necessary to prevent the lining of the uterus from shedding and to maintain the pregnancy. If the corpus luteum did not receive this signal, it would degenerate after about 12 days, and progesterone levels would decline. This would cause the lining of the uterus to be shed and menstruation to occur. The levels of hCG in a woman's blood and urine can be used to diagnose pregnancy. hCG levels rise rapidly in the first few weeks of pregnancy and can be detected by a blood or urine test. After about 10 weeks of pregnancy, hCG levels start to decline and eventually level off.
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A population of finches that have 3 different beaks live on an island. Each beak type is adapted to one of 3 specific food sources. Two of the three food sources are eliminated during a hurricane. What will happen to the finch population
Answers
in conclusion, the finch population will decrease.
hope this helps!
the finch that is adopted the remaining food source will be survive.
Explanation:
Why is writing on word better than writing on a sheet of paper?
Answers
Answer:
because on paper your hand wrighting is bigger and you go through more sheets and on word it has auto correct and auto save and suggestions
Explanation:
can i have brainlyest
Answer:
Writing in Word is more convenient
Explanation:
Word has a host of text, correction software it suggests proper grammer and spelling and can format your doucument.
The diagram represents a dihybrid cross between two pea plants that are heterozygous for both seed color and seed shape.
What is the phenotypic ratio of the offspring?
- 1:1:1:1:2:2:2:2:4
-1:3:3:9
-1:4
-4:12
Answers
Answer:4:12
Explanation:
This question already provides you with the punnet square, genotypes resulting from the cross, and phenotypes resulting from the cross. Simply count the number of green phenotypes (the green circles), and compare them to the number of yellow phenotypes (yellow circles), and you get 4 green for every 12 yellow.
H. If you had 64 amu of ch4, how many molecules would this be?
Answers
Given mass/molar mass = 64
Molar mass of methane = 16
Therefore,
No. of moles of methane = 64/16 = 4.
So, there are 4 moles of methane in 64amu of ch4.
Since, Avogadro's number= 6.022 * 10^23 i.e number of units in one mole of any substance)
We can also write 4* 6.022 * 10^23 molecules of methane [ one mole has weight as molecular weight in gm] .
Since each molecule has 10e, we can also write
10 * 4 * 6.022 *10^23 e in 64 gm of methane.
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lake tefillin is a large freshwater lake that is popular for recreation. one year, the managers of the lake introduced a population of rainbow trout to the lake. the graph shows the growth of the population over several years.
which best describes the growth pattern of the rainbow trout?
a) exponential growth,because the lake provides unlimited resources to the population
b) logistic growth, because the effect of limiting factors increased with the population size
c) exponential growth, because limiting factors are always affecting the population
d) logistic growth, because the lake provides unlimited resources until the population reaches carrying capacity
Answers
Answer:
b) logistic growth, because the effect of limiting factors increased with the population size
Explanation:
The S-shaped curve in the graph above depicts a typical logistic growth pattern.
In this type of growth pattern, there is an initially exponential growth at the beginning when limiting factors of growth are minimal. As the initial population increases, resources for growth become limited. Growth starts to slow down. And at some point, insignificant increase in population growth sets in. This is depicted on the graph where the tail end of the curve levels of and fluctuates.
This logistic growth curve shows that, over the years, the limiting factors that slows down growth of Rainbow trout population increases as the population of Rainbow trout increased. This led to the growth rate slowing down and eventually levels up with no real significant change in population size of Rainbow Trout.
through _____ large molecules are formed
Answers
Biological macromolecules
Hope this helps!
Answer:
Macromolecules
Explanation:
because they combine with covalent bonds
Clear-winged dragonflies live longer and can reproduce
many more times than yellow-winged dragonflies.
How is this population of dragonflies most likely to change as a result of this
difference?
O A. Dragonflies with yellow wings will evolve into ones with clear
wings
O B. Clear-winged dragonflies will become more common over time.
O C. The number of dragonflies will shrink until they become extinct.
O D. Yellow-winged dragonflies will become more common over time.
Answers
Clinicopathological significance of lymphocytic colitis/collagenous colitis in inflammatory bowel disease
Answers
The clinicopathological significance of lymphocytic colitis/collagenous colitis in inflammatory bowel disease lies in its distinct histological features and clinical presentation.
Lymphocytic colitis and collagenous colitis are two subtypes of microscopic colitis, which is characterized by chronic inflammation of the colon. Lymphocytic colitis is characterized by increased intraepithelial lymphocytes in the colonic mucosa, while collagenous colitis is characterized by thickening of the subepithelial collagen layer. These histological features, along with clinical symptoms such as chronic diarrhea, abdominal pain, and weight loss, help differentiate these conditions from other forms of inflammatory bowel disease.
Clinically, lymphocytic colitis and collagenous colitis are often associated with a relatively mild course of disease compared to other forms of inflammatory bowel disease, such as Crohn's disease or ulcerative colitis. However, they can still cause significant morbidity and impaired quality of life for affected individuals.
Understanding the clinicopathological significance of lymphocytic colitis/collagenous colitis in the context of inflammatory bowel disease is important for accurate diagnosis and appropriate management.
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microorganisms that benefit from and harm their hosts are called _____
Answers
Answer:
Microorganisms that benefit from and harm their hosts are called Parasite
Which process produces oxygen that is released into the atmosphere? *a. Respirationb. Excretionc. locomotiond. photosynthesisi don't know, I rather not guess
Answers
- Respiration is the process in which animals and plants take oxygen from the atmosphere.
-Excretion is the process in which living beings get rid of waste products.
-Locomotion involves any form of movement made by living beings.
-Photosynthesis is the process in which plants use water, sunlight, and carbon dioxide to create oxygen and energy.
The correct answer is Photosynthesis
Question
Tell whether x and y show direct variation. Explain your reasoning. If so, find k.
8=xy
Answers
Answer:
PREGUNTA:
INDICA SI XEY MUESTRAN VARIACIÓN DIRECTA .EXPLICA TU RAZONAMIENTO .SI ES ASI, BUSQUE K.
8=XY
Explanation:
ESPERO QUE TE AYUDE
explain the terms of obligate categories discuss the various intermediate categories.
Answers
refer to the taxonomic groups that are consistently utilized in organism hierarchy classification. Sub-phyla, subclasses, suborders, subfamilies, subgenera, and variations are a few examples of .
:It is challenging to classify newly discovered creatures into established categories. As a result, the prefixes "super" and "sub" have been added to the existing categories, such as sub-kingdom, sub-phylum, super class, etc. These are categorized as . This has also made the placement of different taxa more soundly and scientifically.
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the phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin and nuclear membrane reappears is?
Answers
Answer: telophase is your answer :)
Identify the two main processes through which carbon is cycled between the
atmosphere and living things.
Identify the main places carbon is stored.
Answers
Answer:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them.
Explanation:
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The theory of evolution states that organisms come from where?
Answers
Answer:
I think it is from a common ancestor, but I am not sure
Explanation:
Answer:
Darwin said that all species may have come form some sort of “primordial form”
Explanation:
Please help me to answer this questions. If you help me to answer it I will give you brainiest
Answers
Answer:
a. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
b. Mercury, Venus, Earth, and Mars.
c. Neptune, Uranus, Saturn, and Jupiter.
Explanation:
a. Name the planets of the solar system in order :
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
b. Name the rocky planets.
Mercury, Venus, Earth, and Mars.
c. Name the gas giants.
Neptune, Uranus, Saturn, and Jupiter.
Answer:
a mercury , venus , earth mars , jupiter, saturn , uranus , neptune
b mars, mercury ,venus ,earth
c jupiter, neptune, uranus, saturn
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of
Answers
Answer:This is an example of asexual reproduction.
Explanation:
Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.
Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:
--> Fission
--> Budding
--> Spore formation
--> Fragmentation and
--> Vegetative propagation.
The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.
Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include: Fission Budding Spore formation Fragmentation and Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting mediaThus, The given case shows an example of - asexual reproductions.
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3. If "warm air rises," predict how
se
conditions in a low-pressure system
to a high-pressure system.
compare
compare to
is
ear skies. Unde c
ence cloudy skies and
Answers
Hot air rises because when you heat air (or any other gas for that matter), it expands. When the air expands, it becomes less dense than the air around it.
What Happens When Warm Air Rises?
Different types of fronts in weather can be caused by a number of physical phenomena on the planet. So many things can affect the flow of air (from humidity to wind strength to temperature to landforms, like oceans and mountains) that it's sometimes hard to believe scientists can predict anything about it.
It may be easier to wrap your head around how weather moves and what happens when warm air rises if you think back to a few physics examples you may have heard once upon a time.
Hot air rises. As air rises, air pressure at the surface is lowered. Rising air expands and cools (adiabatic cooling: that is, it cools due to change in volume as opposed to adding or taking away of heat). The result is condensation/precipitation.
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2. Why was the Land between the Rivers such an important region for the development of early
human civilization?
A. It contained a lot of people.
B. It contained rivers.
C. It was located in the Fertile Crescent.
D. It was an arid area surrounded by mountains.
Answers
Answer:
C. It was located in the Fertile Crescent.
Explanation:
Human civilization develop on the lands that situated between rivers because of the fertility of the land. These rivers brings nutrients rich soil which is deposited at the side of the river. Due to this nutrients rich soil, the agriculture is possible and we know that for agriculture is also very very important which is also available near to these soils so that's why the people of early civilization settled in this region.
the red cells found in lead poisoning characteristically exhibit coarse granules composed of _______ that are reported as _______. group of answer choices
Answers
The red cells found in lead poisoning characteristically exhibit coarse granules composed of excess iron deposits that are reported as basophilic stippling, option D is correct.
In lead poisoning, the red blood cells (erythrocytes) can exhibit coarse granules known as basophilic stippling. These granules are composed of excess deposits of iron within the cells. Basophilic stippling refers to the appearance of small, dark-blue or purple granules distributed throughout the red blood cells when stained and observed under a microscope.
Precipitated hemoglobin is not associated with lead poisoning, and Pappenheimer bodies are iron-containing granules seen in certain conditions like sideroblastic anemias, option D is correct.
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The complete question is:
The red cells found in lead poisoning characteristically exhibit coarse granules composed of _______________ that are reported as ______________
A. Precipitated hemoglobin; Pappenheimer bodies
B. Aggregated ribosomes; basophilic stippling
C. Nuclear fragments; Pappenheimer bodies
D. Excess iron deposits; basophilic stippling
Describe the different morphological types of viruses and give examples of each type:
a. Helical
b. Icosahedral
c. Complex
2. Compare and contrast the multiplication of bacteriophages versus the multiplication of animal viruses:
3. Describe how arthropods can act as mechanical vectors and biological vectors:
4. Describe five (5) characteristics of fungi and how they differ from othermicroorganisms: 5. Describe common characteristic of protozoans (protists). Name three (3) protozoans that are human parasites:
6. What are helminths? Name and describe three (3) that can cause problems in humans
Answers
Bacteriophages multiply within bacterial cells through the lytic or lysogenic cycle, while animal viruses typically use the steps of attachment, penetration, uncoating, replication, assembly, and release.
Helical viruses have a coiled or spiral-shaped capsid, such as the tobacco mosaic virus. Icosahedral viruses have a symmetrical icosahedral-shaped capsid, like the adenovirus. Complex viruses have a combination of both helical and icosahedral components, such as bacteriophages.
Bacteriophages multiply within bacterial cells through the lytic or lysogenic cycle, while animal viruses typically use the steps of attachment, penetration, uncoating, replication, assembly, and release.
Arthropods can act as mechanical vectors by carrying pathogens on their bodies or in their mouthparts, transmitting them to humans through physical contact. They can also act as biological vectors by harboring and transmitting pathogens within their bodies, such as mosquitoes transmitting malaria parasites.
Fungi are eukaryotic organisms characterized by their filamentous structure (hyphae) and reproduction through spores. They differ from other microorganisms in their mode of nutrition (absorptive), cell wall composition (chitin), mode of reproduction (asexual and sexual), growth at low pH, and preference for organic substrates.
Protozoans are single-celled eukaryotic organisms classified under the kingdom Protista. They exhibit characteristics such as being unicellular, heterotrophic, motile (using cilia, flagella, or pseudopods), and capable of reproduction through binary fission or sexual processes. Examples of human parasites include Plasmodium (causing malaria), Giardia lamblia (causing giardiasis), and Trichomonas vaginalis (causing trichomoniasis).
Helminths are parasitic worms that infect humans. Three examples of helminths that can cause problems in humans are Ascaris lumbricoides (roundworm), Taenia solium (pork tapeworm), and Schistosoma mansoni (blood fluke). These helminths can cause diseases such as ascariasis, taeniasis/cysticercosis, and schistosomiasis, respectively. They have complex life cycles involving different developmental stages and can infect various organs or systems in the human body.
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4. What are three indicators of a chemical
change?
Answers
Answer:
Gas bubbles, color changes, production of light, volume change, or a change in smell or taste (p.s, don't lick the science).
if you travel 3 miles on the bus to get to school and three miles to get home each day how many miles will you travel on the bus during s 180 day school year
Answers
Answer:
it's 1080
Explanation:
3 miles to school and 3 miles back would make 6 miles a day and if you do 6 * 180 you'll get 1080
The procedure used to make insulin in bacteria can also be used to synthesize the biological materials.think of a chemical or material inside the human body that could be synthesized within bacteria.what would be the potential benefits of this process?what would be the potential drawbacks?
Answers
The potential benefits of using bacteria to synthesize biological materials such as insulin include the low cost of production as well as the higher yield obtained.
The potential drawback of using bacteria to synthesize biological materials is the risk of contamination and infection.
What is the genetic engineering process of using bacteria to synthesize insulin?Genetic engineering is the process of using biological organisms to manipulate the genes of other organisms.
The genetic engineering process of using bacteria to synthesize insulin involves the following steps:
Identifying the Insulin GeneCreating a Recombinant PlasmidInserting the Insulin Gene into BacteriaCultivating the Transformed BacteriaInducing Insulin ProductionHarvesting and Purifying Insulin:Quality Control and FormulationLearn more about Insulin at: https://brainly.com/question/786474
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which of the following statements about transcriptional regulation is false? group of answer choices the general transcription factors recruit rna polymerase to the transcriptional start site. a response element binds to an enhancer. mediator does not bind directly to dna. the function of an activator might be to recruit chromatin remodelers to make the dna more accessible.
Answers
The false statement about transcriptional regulation is: option (B) states "mediator does not bind directly to DNA".
Mediators are proteins that act as a bridge between activators, which bind to specific sites on the DNA, and the general transcription factors (GTFs) that are recruited to the transcriptional start site.
Mediators interact with both the activator and the GTFs, enabling them to bind to the DNA, recruit polymerase and begin the transcription process. Specifically, mediators bind to the activator, which in turn binds to a response element on the DNA.
The activator then recruits the GTFs and RNA polymerase to the start site, and transcription is initiated. In addition, mediators also help to regulate the activity of activators, as they can both increase and decrease the ability of activators to bind to their DNA response element.
Therefore, it is incorrect to say that mediator does not bind directly to DNA.
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Please help! Thank you!
Answers
Answer:
organ
Explanation:
organ might be the answer
it’s organ i think ! :)
Can somebody help me?
Answers
Answer:
a
Explanation:
What is responsible for the red tide phenomenon? It is a phenomenon that usually coincides with storm surges; the name comes from the red kelp that often washes ashore as a result of rough weather. Red tide occurs in patches of water where certain species of dinoflagellates flourish. They are so abundant that the water becomes discolored and takes on a red hue. Red tides occur once a year and in accordance with the lunar cycle. The water appears red as a result of reduced levels of photosynthetic pigmen
Answers
Answer:
Red tide occurs in patches of water where certain species of dinoflagellates flourish.
Explanation:
Red tides refer to the noticeable microalgae proliferation that can be recognized for being a big spot in the sea of a characteristic coloration. This phenomenon is caused by two microalgae groups: diatoms and dinoflagellates, both part of phytoplankton.
Red tides occur when certain environmental factors -such as temperature, light, nutrients availability, ph, etcetera- favor the overproduction of these organisms. These species produce toxins that turn to be dangerous for other animal species that feed on them.
Because these microorganisms produce pigments, their accumulation on the sea surface can be noticed as reddish, brown, or greenish color spots of variable extension.
HELP PLEASE! WILL GIVE BRAINLY!! Living organisms are unified by major characteristics. Which of the following describes the unifying property of homeostasis? A. Living organisms adapt to their environments b. Living.organisms maintain fairly constant internal conditions c. Living organisms use transform energy d. Living organisms grow and reproduce
Answers
Answer:
A
Explanation:
If I'm wrong I'm sorry.
I had this question.
Answer:
A
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