Which of the following best describes how the amount of DNA in the cell changes during M phase?
The amount of D N A doubles as the D N A is replicated.
The amount of D N A slightly increases as a result of new organelle synthesis.
The amount of D N A does not change while the cell grows.
The amount of DNA is halved as the cell divides into two daughter cells.
Answers
Answer:
The amount of DNA doubles as the DNA is replicated
Explanation:
on the graph it shows that the DNA is x2 by the time it reaches G2
The amount of DNA is halved as the cell divides into two daughter cells. Therefore, option (D) is correct.
What is M phase?M phase, also known as mitosis, is the phase of the cell cycle in which a cell divides into two daughter cells. M phase is divided into several stages, including prophase, prometaphase, metaphase, anaphase, and telophase. During prophase, the cell's nucleolus disappears and the chromatids (replicated chromosomes) become visible. In prometaphase, the nuclear envelope breaks down and the mitotic spindle begins to form.
During metaphase, the chromosomes line up at the equatorial plane of the cell. In anaphase, the sister chromatids are separated and move to opposite poles of the cell. Finally, in telophase, two new nuclei form and a new cell wall begins to grow between the two daughter cells. Overall, M phase is a crucial step in the cell cycle that ensures the accurate segregation of genetic material to the daughter cells.
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Related Questions
Cell division vocabulary .
Answers
Answer:
Chromosomes-a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Chromatin-the material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.
Chromatid-each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
Centromere-the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
Centriole- a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
Explanation:
What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?
Answers
Which scenario describes an interaction between two of Earth’s spheres?
Water flows from a stream to a lake.
Gravity moves rocks to another location.
Lions use energy to catch other animals for food.
Bears dig big holes in the ground to protect their young.
Answers
Answer:
The scenario that describes an interaction between two of Earth's spheres is "bears dig big holes in the ground to protect their young".
Explanation:
The Earth spheres include the biosphere, the hydrosphere, the geosphere, and the atmosphere. In this context, there is an interaction between two spheres: the biosphere and the geosphere, when a bear digs holes in the ground because a living organism that is part of the biosphere is modifying the structure and shape of superficial soil, which is part of the geosphere.
At which temperature could air hold the most water vapor?
A. 2°C (36°F)
B. 24°C (75°F)
C. 35°C (95°F)
D. 13°C (55°F)
Answers
Answer: C: 35° (95°F)
Explanation: The hotter the temperature, the more water vapor air can hold.
If white wool (W) is dominant over black wool (w), can two sheep with black wool produce an offspring with white wool? Explain your answer.
Answers
Answer:
No, the offspring of two black sheep cannot have white wool. Since the black wool allele is recessive, both parents have to be recessive (ww) and so do not carry the dominant white wool allele. The only allele the parents can pass to their offspring is the black allele.
Imagine that the climate in your region became extremely arid, and freshwater became a scarce and precious resource. Wasteful uses of water, such as watering lawns and filling swimming pools, would be strictly outlawed, and water from the municipal water supply would cost 100 times what it does now. Discuss how you would adapt to that situation.
Answers
I would adapt to such situation by ensuring that physical activities are
reduced , use of water is adjusted and recycling is maximized.
Water is a n important component of life as we need water for various
activities such as drinking, cooking, washing etc. Scarcity of water can result
to unhygienic conditions and dehydration which could result in death.
it is best to ensure physical activities are reduced to prevent dehydration
through sweating. The wastage of water should be reduced to the barest
minimum through use adjustment and recycling.
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Animals do not have inner feelings that tell them when to eat.
True or False
Answers
Answer:
true
Explanation: because if they did then that would be crazy, its like how would they have feelings that tell them what to eat and what not to eat, yk what i mean? im sorry if this is wrong.
Which of the following characteristics are necessary for a fossil to be a good index fossil? (Choose all that apply)
had a broad geographic distribution
easy to identify at the species level
an invertebrate
short-lived
Answers
Answer:
A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.
Explanation:
Fossil to be a good index fossil are:-
Had a broad geographic distributionEasy to identify at the species levelAn invertebrateShort-livedWhat is a fossil?Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not the remains of the organism.They are rocks. A fossil can preserve an entire organism or just part of one. Bones, shells, feathers, and leaves can all become fossils.Hence, All the given option are correct.
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If a nerve cell stopped functioning, the cell would
Answers
Answer:
stop sending signals to the brain
Explanation:
Which of the following are unique to animals? Flagellated gametes, nervous system signal conduction in muscular movement, heterotrophic, the structural carbohydrate chitin
Answers
Answer:
Nervous system signal conduction in muscular movement
Explanation:
Hope i helped :)
2. What characteristics of bougainvilla plant makes animals to be afraid? A. It has spores on its stem C. It has thorns on its stem B. It has spreading, feathery root stem D. It has light rounded waxy leaves
PLEASE HELP ME I REALLY NEED THE CORRECT ANSWER RIGHT NOW!!!!
Answers
Answer:
It has thorns on its stem
Explanation:
Which of these forms when air moves in the directions shown by the arrows
in the diagram?
A ) Valley Breeze
B) Land Breeze
C ) Mountain Breeze
D ) Sea Breeze
Answers
Answer:
C.
Explanation:
Please do brainless :)
Mountain breeze refers to the fact that the surface breezes are coming from the mountain and blowing into the lowlands. Thus, option C is correct.
What is the movement of air in mountain breeze?The air cools during the night and flows into the valley from the mountainside.
As a result, the breeze blows in the other direction; it travels from the mountains to the plains and valley floor. This wind is therefore referred to as the mountain breeze.
As the air rushes in to fill the space, the air pressure decreases and a gust of wind is produced. A valley breeze, on the other hand, develops when cooler air in the valley falls to fill the space left by the warm air rising.
Therefore, Mountain Breeze in which air move from high pressure to low pressure.
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i need help with understanding what this is
Answers
How does natural selection change the frequency of genes or traits over many generations? Biology students conducted an experiment mimicking genetic variation and coloration. Students used different colored beans to represent animals that might be prey: mice, for example. A student in each group was the predator: a hawk. Beans (mice) were randomly scattered on multicolored floor tiles, each color within four tiles. The hawk collected mice (beans) for 10 seconds. Mice not eaten reproduced. Three generations of data a shown in the table.
Genetic variation helps to drive natural selection and potentially, evolution. Red, white, and striped beans (mice) represent offspring that are the product of meiosis and sexual reproduction. Black and speckled beans (mice) are the result of mutations. Using the student data analyze the effects of these mutations on natural selection.
A) The color mutations provided a survival advantage to these two populations of mice.
B) The advantage of the mutations is dependent on the environment and external conditions.
C) While mutations provide genetic variation they did not play a role in natural selection.
D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.
Answer:
D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.
Answers
The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.
Natural selection refers to the observation that organisms that are more suited and adapted to their environment live long enough to survive and reproduce thereby passing on their favorable characteristics to their offspring.
The mutation in which the mice became speckled was shown to be an advantage from the table. Hence, the speckled mutation provided an advantage while the black mutation was a disadvantage for survival.
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vermiform appendix is a vestigial organ in human being give reason.
Answers
Answer:
The human appendix may be considered as a vestigial organ as it has been proved that the removal of the organ after infancy does not create any harm. Vestigial in that sense means that the vermiform appendix seemingly has no functions or is useless now but they might have had functions previously which are lost someway due to evolution.
Explanation:
Vestigial organs are organs, tissues or cells in a body which are not functional anymore the way they were in their ancestral form of the trait. It is therefore authentication of evolution and hence were helpful in explaining adaptation.
In which of the following ways can albert reduce the resources he consumes
Answers
Answer:
where is option man?
please,send option also
Explain how cells theory development
Answers
Answer:
The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.20-Aug-2020
Explanation:
hope this. helpes
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What kind of alleles get over-shadowed or blocked by more dominant alleles?
Answers
Answer:
I believe these are called the recessive traits or alleles
Explanation:
Recessive traits (represented in a pinnet square usually by lower case letters like rr, bb, pp, mm, ll and so on and so forth)
These traits can be blocked by the dominant ones ( BB, Bb, PP and so on and so fourth)
look at the punnet square to get a better visual :3
What must organisms be adapted to so that they can live in an estuary?
both low and medium salt concentrations
medium and high salt concentrations
high salt concentrations
low salt concentrations
Answers
Answer:
Both low and Medium salt Concentration.
Two key adaptations they have are the ability to survive in waterlogged and anoxic (no oxygen) soil, and the ability to tolerate brackish waters.Hope this helps !!Answer:
both low and medium salt concentrations
Explanation:
took the test
The skeletal system of animals provides structure and support. Which cell part provides a similar function in a plant cell? a. pili b. large central vacuole c. Golgi apparatus
d. cell membrane
Answers
Answer:
b. large central vacuole
Explanation:
it maintains pressure against the inside of the cell wall, giving the cell shape and helps to support the plant.
compare a frogs internal organs to a humans internal organs
Answers
Answer:
Answer is below
Explanation:
Frogs and humans share the same basic organs. Both have lungs, kidneys, a stomach, a heart, a brain, a liver, a spleen, a small intestine and a large intestine, a pancreas, a gall bladder, a urinary bladder and a ureter. ... On the whole, their organ structure is similar, but frogs have considerably less complex anatomies
Taste action potentials move through cranial nerve number ____ to the brain.
Answers
Answer:
Cranial Nerve #9
Explanation:
Cranial nerve number 9 is also called the glossopharyngeal nerve. Taste perception is really cool I recomend studying this topic well!
Cows, buffaloes and wildebeest are closely related enough that the same disease can harm all of them true or false
Answers
Should be the right answer because we can see mutations in humans can kill some and do nothing to others
The desertification of an area from deforestation due to mining gold would be a(n) ___ cost of the gold.
indirect
direct
Answers
Answer: the answer would be indirect
Find the similarities or interesting facts about system of modern phones and human brain.
Answers
The human brain and that of the computer(Modern Phones) are similar is so many ways, bellow are some highlighted facts between the human brain and the computer
They used electrical signals to send messagesBoth transmit information.Both have a memory that can growBoth can adapt and learn.Both have evolved over time. Both need energy. Both can be damaged. Both can change and be modifiedBoth brains and computers are studied by scientists.Learn more about the human brain and computer
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Which of the following symptoms is characteristic of a manic mood state?
a) Cycling between elation and depression
b) Catatonic excitement
c)
Disorganized speech in the form of a "word salad"
d) Extremely high self-esteem
)
Answers
The symptom that is a characteristic of manic mood state is therefore: b) Catatonic excitement
What is the Manic Mood State?The manic mood state is a phase of bipolar disorder, which is characterized by catatonic symptoms such as heightened energy, euphoria, loss of sleep, excessive talk, and being hyperactive.
Thus, the symptom that is a characteristic of manic mood state is therefore: b) Catatonic excitement
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What is the function of the structure labeled C in the diagram to the right? it is where water, dissolved substances, and urea are filtered out of the blood.
Answers
Answer:
B. It captures the substances filtered out of the blood.
Explanation:
Edge 2021
Answer: B
It captures the substances filtered out of the blood.
Explanation:edge 2022
This is confusing, help please
Answers
Answer:
C: the song bird
Explanation:
Birds follow a type II or in your case a type B survivorship curve. Unlike elephants which are a Type I or Type A, and the bugs are Type III or Type C in your case.
Answer: I think it would be (C)
Explanation:
I really hope this helps
To remember abdominal muscles, explain what TIRE stand for the phrase “spare TIRE”.
Answers
Answer:
Spare tire in abdominal area is large amount of fat deposits usually derived by poor diet and lack of exercise
The spare tire is excess body fat stored around the midsection when our calorie balance is off.
It is caused by an imbalance between calorie intake and output, poor diet and insufficient activity are the main culprits of belly fat.Why excess fat is not good for health?Weight gain and obesity.Heart disease and related issues, like high blood pressure.High blood cholesterol levels and triglyceride levels.Metabolic syndrome.Prediabetes.Type 2 diabetes.Insulin resistance.Fatty liver disease.Stroke.To know more about fats here
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Plzzzz help Creating models to examine concepts is important in science. Some of these are experiments
and only one is a model. Which one is a model?
a
O A heated soda can is cooled rapidly to see what will happen to air pressure.
O An apple is sectioned into quarters to represent the ratio of water to land on Earth.
O Ice cubes are left to melt on different surfaces to find out how materials conduct heat.
O Students conduct a color blindness test with their family members.
Answers
Knowing that a model is considered a representation of something, the correct option is option B, in which the apple represents the Earth. An apple is sectioned into quarters to represent the ratio of water to land on Earth.
--------------------------------
To answer this question, you can think about a model as a representation of something.
A scientific model can represent an object, a system, a process, a phenomenon, etcetera.
Models are used to explain, predict, or describe natural events. They constitute a significant tool in modern science and are essential to scientific practice.
Knowing this, among the provided options, the one that is a model is option B.
The apple is representing the ratio of water to land on Earth. It is a representation of the earth.
All the other options are experiments performed to see what is going to be the result.
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