the minus ends of kinetochore microtubules are attached to the kinetochores of chromatids by the ndc80 complex false they are attached to
Answers
The ndc80 connects the minus ends of kinetochore microtubules to the kinetochores of chromatids. So, its false statement.
The Ndc80 complex works to congress chromosomes and signal the spindle checkpoint in addition to playing structural roles in the assembly of the kinetochore. It has a strong affinity for microtubules and is now the top contender for the long-sought protein that links chromosomal mobility to microtubule depolymerization.
Interpolar microtubules run from the spindle pole across the equator, almost to the other spindle pole, while astral microtubules run from the spindle pole to the cell membrane. Kinetochore microtubules bind the chromosomes to the spindle pole. At first, kinetochores and the microtubule lattice interact laterally. They then become attached at the microtubule plus end and display motility that is closely related to the polymerization and depolymerization of microtubules (end-coupled attachment).
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Correct Question:
True or False: The minus ends of kinetochore microtubules are attached to the kinetochores of chromatids by the ndc80.
Related Questions
Osmosis is the net movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. The water will continue to move across the semipermeable membrane as the system attempts to reach equilibrium, where both solutions have the same concentration. Semipermeable membrane Pure H20NaCl(aq) H20 Time H20 H20 There are three different ways a solution can be described in relation to a cell placed in the solution: isotonic, hypotonic, and hypertonic. Compared to a cell, an isotonic solution exerts the same osmotic pressure as the cellular fluids. In other words, it behaves as if it had the same solute concentration as the cell. A hypertonic solution behaves as if it had a higher solute concentration than the cell. A hypotonic solution behaves as if it had a lower solute concentration than the cell. 。"acel is placed in an isotonic soution, nothing happens to the cell because water moves o If a cell is placed in a hypotonic solution, water will flow into the cell, causing it to swell (and If a cell is placed in a hypertonic solution, water will flow out of the cell, causing it to shrink. Consider the three scenarios below. In each, a semipermeable membrane separates two into the cell at the same rate that it moves out of the cell. o If a cell is placed in a hypotonic solution, water will fow into the cell, causing it to swell (and possibly burst). solutions in a similiar manner as illustrated above. Indicate which solution will increase in
Answers
Osmosis is the flow of water molecules over a semipermeable membrane from a region of greater water concentration to a region of lower solution concentration (i.e., lower concentration of water). Water enters and exits cells via osmosis.
When a blood cell is placed in a beaker with a concentrated salt solution, the solution is known as a hypertonic osmosis solution because the solution's concentration is higher than the concentration of the blood cell. As a result, osmosis the solvent moves from the blood cell to the concentrated salt solution until both solutions have the same concentration. a concentrated salt solution, the solution is known as a hypertonic solution because the solution's concentration is higher than the concentration of the blood cell. As a result, the solvent moves from the blood cell to the concentrated salt solution until both solutions have the same concentration.
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Write a hypothesis about the effect of the red light on the
population. Use the "if.
.then . .. because . . ." format,
and be sure to answer the lesson question: "How does
natural selection change the phenotypes within a
population over time?"
Answers
When a phenotype generated by particular alleles helps animals survive and reproduce more than their contemporaries, natural selection may boost the number of the advantageous alleles from a single generation to the next.
Natural selection alters phenotypic in what ways?The effect of natural selection upon single-gene traits can modify allele frequencies and, as a result, phenotypic frequencies. Natural selection on polygenic characteristics can have three effects on phenotypic distributions: directional selection, stabilisation selection, and disruptive selection.
How does the process of natural selection affect population growth over time?Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are able to prosper and pass on the DNA that helped them thrive. Species change and split as a result of this process.
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As in mitosis in meiosis the chromosomes all line up at equator of cell in
A. Prophase
B.anaphase
C.telophase
D.Metaphase
Answers
Question 2 (3 points)
Since velocity describes both speed and direction, you can call it
a force arrow
a vector
a magnitude
the same as acceleration
Answers
Answer:
A vector, I guess
Explanation:
Well, a vector is a physical quantity that has both magnitude and direction. I hope this helps! :-)
Warm-Up:
Write down two places in the school where
you think there might be a lot of bacteria,
and write down two places in the school
where you think there will be very little
bacteria. Explain why you chose these
places.
Answers
Answer: Warm-Up:
Write down two places in the school where
you think there might be a lot of bacteria,
and write down two places in the school
where you think there will be very little
bacteria. Explain why you chose these
places.
Explanation:
There is a lot of bacteria in the restroom because it is they restroom of course and there is a lot of people who go in and out through out the day. Some people do not wash their hands after using the bathroom, also from other places. One of the most cleanest areas might be the science lab because they are always cleaning up everything and disinfecting.
Answer:
water fountains and cafeterias
Explanation:
everyone touches them and they never get cleaned properly
Mariano had the split-brain procedure done. Later, he was working with a researcher. When he performed an action via his _____, he found that his _____ tried to invent and defend explanations for his actions, even when the true causes were unconscious.
Answers
Split brain methodology includes cutting a band of strands thusly, the corpus callosum in the cerebrum. After that, the nerves are unable to transmit seizure signals between the two hemispheres of the brain. It makes seizures less extreme and successive and may stop them.
The two hemispheres are connected by the corpus callosum which helps in maintaining communication between both hemispheres for proper coordination. Because each hemisphere performs distinct tasks, the two hemispheres need to communicate and work together. The left hemisphere of the brain is more dominant in verbal tasks like speaking and writing, whereas the right hemisphere of the cortex excels at nonverbal and spatial tasks.
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Which choice contains words/phrases that all mean the same thing?
plant, human, makes its own food, air
consumer, autotroph, air, eats food
heterotroph, autotroph, producer, consumer
autotroph, producer, plant, makes its own food
Answers
Answer:
autotroph, producer, plant, makes its own food
Explanation:
All of these words and phrases refer to organisms that can produce their own food through photosynthesis, without needing to consume other organisms for sustenance.
In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism. If an albino man and a woman who is heterozygous for this trait marry and have a child, how likely is their baby to be an albino?
Answers
points)
After glycolysis happens in the cytoplasm, where do the pyruvate molecules that
were made from the food go for the next step in the cellular respiration process?
The Mitochondria
The Nucleus
They remain in the cytoplasm
The Golgi Apparatus
Answers
Answer:
Mitochondria
Explanation:
Have a nice day
The atmosphere exerts a force (pressure) on Earth. Why does the atmosphere exert pressure on Earth?
Answers
many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (h2o2). the products of the decomposition are hydrogen (h2) and oxygen (o2).
Answers
The products of the decomposition are hydrogen \(H2\) and oxygen \(O2\) is \(H2O2\). Many cells make and use an enzyme, called catalyze to facilitate the decomposition of hydrogen peroxide.
What are enzymes?Enzymes are the biological catalyst that speed up the chemical reaction that carries out in the body. Enzymes has been protein by nature and there has number of the enzymes present in our body such as salivary amylase, pepsin, renin, lyases, lygases etc.
The main function of the enzyme has to make the metabolism fast as well as speed up the chemical reaction carried out in the body.
Therefore, The products of the decomposition are hydrogen \(H2\) and oxygen \(O2\) is \(H2O2\). Many cells make and use an enzyme, called catalyze to facilitate the decomposition of hydrogen peroxide.
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What role to 'epigenetics' have to do in genetic expression?
Answers
Answer:Epigenetics is the study of heritable changes in gene expression (active versus inactive genes) that do not involve changes to the underlying DNA sequence — a change in phenotype without a change in genotype — which in turn affects how cells read the genes.
Explanation:Epigenetics is the study of heritable changes in gene expression (active versus inactive genes) that do not involve changes to the underlying DNA sequence — a change in phenotype without a change in genotype — which in turn affects how cells read the genes.
Bushy Viper or Narwhal
Answers
Answer:
Narwhal is cool.
Explanation:
Not big fan of snakes. But the sound Viper would sound cool in a car model.
Mutations occur randomly
A. True
B. False
Answers
Answer:
A true hope it's right can i get a brainliest plz
Explanation:
Answer:
Mutations occur spontaneously in all living things. By changing the chemistry of the organism's genetic material or altering the structure of a chromosome a mutation changes die structure or function of the organism and its offspring. Most often the mutation is harmful, and the change is erased by natural selection.
A central tenet in evolutionary theory is that mutations occur randomly with respect to their value to an organism; selection then governs whether they are fixed in a population.
Factors in the environment are thought to influence the rate of mutation but are not generally thought to influence the direction of mutation. ... In this respect, mutations are random — whether a particular mutation happens or not is generally unrelated to how useful that mutation would be.
Explanation:
need other answers
What is the complementary strand for the DNA strand below?
GGCATACGTTAC
A. GGCATACGTTAC
B. CCGUAUGCAAUG
C. TTACGCATGGCA
D. CCGTATGCAATG
Answers
As G goes with C
And T goes with A
glucose labeled with 14c at c5 is incubated with the glycolytic enzymes and necessary cofactors. what is the distribution of 14c in the pyruvate that is formed, assuming that dhap is rapidly converted to gap?
Answers
By dissociating both carbs and lipids through the processes of glycolysis and beta-oxidation, Acetyl-CoA is produced.
Then, it enters the mitochondria's TCA cycle where it joins forces with oxaloacetate to produce citrate. The acetyl-CoA won't have any labeling in the scenario presented. The carboxyl carbon of pyruvate is denoted by the labels C3 and C4 on glucose. The carboxyl carbon is lost as carbon dioxide in the subsequent processes of the conversion of pyruvate to acetyl-CoA. As a result, there are no tagged C3 or C4 glucose molecules in acetyl-CoA. The nucleus of a carbon atom, which consists of six protons and six neutrons, is surrounded by six electrons. The initial two electrons need to
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how does the carrying capacity and limiting factors effect on reproductive patterns
Answers
Carrying Capacity
Carrying capacity is the number of organisms an ecosystem can support. If the population grows past the carrying capacity, then the environment or organisms will begin to suffer. The carrying capacity of an ecosystem is dependent upon the available resources and the needs of the organisms. Some ecosystems have more available water than others; these areas will have higher carrying capacities.
Limiting Factors
Limiting factors are things that restrict the population of an organism. For example, space, water, and food are all limiting factors. Within one ecosystem there is a finite amount of all resources. These limited resources restrict the number of organisms that can survive in one area.
Reproductive Patterns
Carrying capacity and limiting factors can affect reproductive patterns in different ways. If a population is reaching carrying capacity, then population growth could decrease as organisms do not have enough resources to reproduce. Additionally, some ecosystems have wet vs. dry seasons. In these areas, water, a limiting factor, is more available at specific times of the year. So, organisms might be more likely to reproduce as there is more access to limited resources.
kyle has a cancer of the lymph nodes or glands. what type of cancer does kyle have?
Answers
3. how does flow rate affect the desirability of products? make a list of products whose
quality depends upon their flow rate
Answers
Flow rate can have a significant impact on the desirability of products, particularly those that involve the movement of fluids or gases.
The following are some examples of products whose quality can be affected by flow rate:
1. Beverages: The flow rate of liquid in beverage production affects the consistency, flavor, and appearance of the final product. A slow flow rate can result in a thicker and more concentrated drink, while a faster flow rate may dilute the drink or affect its carbonation.
2. Chemicals: In chemical processing, the flow rate of reactants and solvents can influence the reaction rate and product yield. A slow flow rate can increase reaction time, while a faster flow rate can cause incomplete reactions or uneven mixing.
3. Medical devices: The flow rate of fluids in medical devices, such as IV drips and ventilators, can impact the dosage of medication or oxygen being delivered. A slow flow rate can result in under-dosing, while a faster flow rate can lead to overdosing or tissue damage.
4. Water treatment: In water treatment plants, the flow rate of water through filters and treatment systems can affect the purity and clarity of the water. A slower flow rate can increase contact time with treatment chemicals, while a faster flow rate can reduce the effectiveness of the treatment process.
In summary, flow rate is a critical factor in many products and processes, and its impact on quality should be carefully considered to ensure optimal performance and customer satisfaction.
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dna is constructed of four different types of proteins. (true or false)
Answers
Answer: False
Explanation:
3. A certain atom has an atomic number of four. How many protons does it have?
A 8
B 4
C2
DO
Answers
Answer:
number of protons=4
Explanation:
because atomic number is equal to the number of protons
12 Which of the following best describes
the energy change that occurs when a
stretched rubber band is
suddenly released?
(1) kinetic to potential
(2) mechanical to potential
(3) potential to kinetic
(4) kinetic to mechanical
Answers
At night the water temperature of the river is warmer than the air temperature. During the day the water temperature is cooler than the air temperature. Why is this true?
Answers
The water cycle gets its energy from the ___?
Answers
Answer:
the sun
Explanation:
Anatomy and physiology
Explain the term “somatic motor”; what does it mean or refer to?
Answers
Answer:
Somatic motor system is the motor system of the body and the neurons involved are the motor neurons. The cell bodies of these neurons are present in the motor nuclei of the cranial nerves of the brain stem and in the anterior horn of the spinal cord.
A bar graph and a pie graph are the same thing.
A. True
or
B. False
Answers
Pie charts show how much each category represents as a proportion of the whole and Bar graphs use a series of rectangular bars to show absolute values or proportions for each of the categories
refer to vs map: gene expression—flow of information from gene to protein tour. in which ribosome site would you find the uncharged trna?
Answers
Answer:
Elongation
Explanation:
Peptidyl Transferase takes the peptide chain (amino acids) from the tRNA in the P-site and attaches it to the amino acid in the A-site. The now-uncharged tRNA in the P-site is expelled from the Ribosome (possibly through the E-site). The Ribosome moves down the mRNA by one codon.
not sure i got this right, help?
Answers
Answer:
That should be good!
Explanation:
Which of the following predictions about global climate change is directly related to an increase in the burning of fossil
fuels?
а. increased extreme weather
b. decreased food supply
c. global warming
d. falling sea levels
Answers
Answer:
c. global warming
Explanation:
Question # 2
Multiple Choice
According to the CDC article on noroviruses, food can be contaminated by all except
direct contact with contaminated hands
tiny droplets of vomitus that spray through the air when an infected person vomits
indirect contact with animal feces
direct contact with work surfaces that are contaminated with infectious stool or vomit
Answers
Answer:
I think Indirect contact with animal feces
hope it helped :)