What will happen if the DNA is not replicated?
O Mitosis will likely not occur.
Cytokinesis will occur before
mitosis.
O Mitosis will decrease the size of the cell.
O The number of chromosomes will reduce by half during mitosis.
Answers
Answer:
The cells within living organisms have the ability to grow and reproduce through the production of new cells. In order to ensure that an exact copy of the DNA is assigned to the new cells, a process called mitosis takes place. When a new cell is needed, the DNA is copied and allocated equally to new cells; then the cell splits in half. While mitosis is a precise system for distributing DNA, it is very complex and includes many cell components that must work in concert. When any one of these intricate steps fails, the results can be adverse for the cell and the whole organism.
During mitosis, a cell divides into two identical cells referred to as daughter cells. In order for both cells to be fully functional and to be able to mature, they each need a complete set of DNA. To prevent the mutations and errors in the DNA, the process has to be extremely accurate. Usually the error rate for copying DNA is around 1-3 errors for every billion base pairs. To get this extremely exact method of copying, there are many checks that happen within the process. The DNA helix unwinds and the strands separate to allow the enzymes used in replication to do their work. If the DNA strand is found to be broken or damaged, the entire process stops until it is repaired.
This process has to occur before mitosis because once mitosis starts, the cell is already preparing to divide. Soon after it begins, microtubules are forming in order to separate the newly replicated chromosomes. The DNA replication process not only has to be completed before this point, but the DNA has to be wound back up and the two copies of the same chromosome (now connected at a point in the chromosome) have to get in position so that they can be pulled apart, each destined for its new cell.
Explanation:
Related Questions
How the nervous and endocrine systems maintain homeostasis?
Answers
Answer:
Hope this helps :D
Explanation:
Homeostasis is the process of how you have a controlled body temperature.
The nervous system detects that your body temperature is falling (or rising) so the endocrine system send the chemical messengers (hormones) to bring the body temperature back to normal.
shape of the smooth muscle cell
Answers
Answer:
They are flat layers
Explanation:
However, smooth muscle fibers do not form thick ropes like skeletal muscles. Instead, they come together in smooth, usually flat layers.
meiosis results in greater genetic variation than asexual reproduction because it-
A. is a lengthy process full of errors.
B. results in a greater number of offspring.
C. is more common in higher order species.
D. allows the recombination of genetic information.
Answers
Answer:
D. allows the recombination of genetic information.
Can someone Please Help Me?!? I'm dying to figure out the answer!! I'll give brainliest
Answers
Pea plant has Round Seed dominant over Wrinkled Seed.
Round Seed allele is R
Wrinkled Seed allele is p
_____________________________________CONDITIONS:Hom.ozygous Dominant Alleles: RR (Round Seed)
Heter.ozygous Dominant Alleles: Rr (Round Seed)
Hom.ozygous Recessive Alleles: rr (Wrinkled Seed)
_____________________________________CROSS I:Whenever we cross Heter.ozygous Dominant(Rr) with Hom.ozygous recessive (rr), we get 50% ROUND SEEDS PHENOTIPICALLY(physical appearance), Because as you can see in the picture,
The P1 is Rr
The P2 is rr
When we cross them,
It has 4 offsprings,
Rr Round Seed
Rr Round Seed
rr Wrinkled Seed
rr Wrinkled Seed
Thus the answer is 50% round seed as there are 2 out of 4 heter.ozygous dominant round seed.
_____________________________________ CROSS II:Whenever we cross Hete.rozygous Dominant(Rr) with another Heter.ozygous Dominant (Rr), we get 75% ROUND SEEDS PHENOTIPICALLY(physical appearance), Because as you can see in the picture,
The P1 is Rr
The P2 is Rr
When we cross them,
It has 4 offsprings,
RR Round Seed
Rr Round Seed
Rr Wrinkled Seed
rr Wrinkled Seed
Thus the answer is 75% round seed as there are 3 out of 4 hom.ozygous and hete.rozygous dominant round seed.
_____________________________________CROSS 3:Whenever we cross Homo.zygous Dominant(RR) with Heter.ozygous Dominant (Rr), we get 100% ROUND SEEDS PHENOTIPICALLY(physical appearance), Because as you can see in the picture,
The P1 is RrR
The P2 is Rr
When we cross them,
It has 4 offsprings,
RR Round Seed
RR Round Seed
Rr Wrinkled Seed
Rr Wrinkled Seed
Thus the answer is 100% round seed as there are 4 out of 4 hetero.zygous and homo.zygous dom.inant round seed.
_____________________________________Best Regards, 'Borz'question
A student poured a solution of bromothymol blue indicator into three test tubes. Then he placed an aquatic plant in two of the test tubes, as shown below. He placed a stopper on each test tube and placed them all in the dark for 24 hours. Bromothymol blue turns from blue to yellow in the presence of CO2
Predict what will happen to the test tubes in Figure 9–9 after 24 hours in the dark.
Answers
In the dark the aquatic plant won't do photosynthesis. Instead it will do cellular respiration in which it will produce CO2. Therefore after 24 hours of letting the plant in the dark introducing Bromothymol in the solution will cause it to turn yellow.
The first hoops were actually peach baskets and the first backboards were made of plywood. The given statement is true.
Why mental health and emotional health is an important role in ones life?So you'll be getting out of the house and hanging out with them rather than being alone with no one to talk or turn to. Which now leads us to mental health our emotions will be average rather than feeling utterly alone and if you ever feel that way your good friend will help you and talk you through it.
The health triangle consists of Physical, Social, Mental Health. Physical health deals with overall working for organs and skeleton structure together. It includes food intake, sleep and exercise and Mental health deals with how peaceful and positive mind human being have. It includes stress management and mental diseases. Social health deals with how we interact with people and how often we interact. It includes family and friends relationships.
Therefore, The first hoops were actually peach baskets and the first backboards were made of plywood. The given statement is true.
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PLEASE HELP. What is the half life of the element in the picture?
Answers
Explain how parents that do not have a trait can have a child that has the trait
Answers
Answer:
their environment
Explanation:
A child's environment has one of the biggest effects developmentally. Meaning friends, school, location.
please help
question is in photo
Answers
Answer:
75% tall and 25% short
Explanation:
T-- dominant
t- recessive
3 dominant alleles (TT, Tt, Tt)
1 recessive allel (tt)
3/4 = 75%
1/4 = 25%
What are the names given to the process by which carbon molecules are broken down to make carbon dioxide and release a great amount of energy?
Answers
Answer:
Explanation:
Cellular respiration -
Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.
Answer:
The tricarboxylic acid cycle
The Kelvin cycle
Explanation:
Studying which of the following would provide the best evidence that two organisms share a common ancestor?
A: Amino acid sequence
B: Dietary preferences
C: Habitat requirements
D: Social group interactions
Answers
Answer:
A
Explanation:
Studying amino acid sequences would provide the best evidence that two organisms share a common ancestor.
Amino acid sequence is a series of bases with different letters usually four(A T C G or U) this letter contains information of an individual when translated.
The amino acid sequence of 2 or more individuals can be compare to each other through the process called Blasting using a tool called Blast
Blast generates alignments or similarities between a amino acid or protein sequence.For organisms that are phylogenetically close i.e related by an ancestor, there will be similarities between their DNA sequences when compared. The amino acid sequence of an individual contains the information of the individual and it is unique for each individual.
Hence, amino acids sequence provides the best evidence of organisms sharing a common ancestor.
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If there is 37% of cytosine in a molecule of double-stranded DNA, what percentage of guanine is present?
A.) 63%
B.) 40%
C.) 37%
D.) 60%
Answers
Answer: B
Explanation:
If you REALLY think about it , you will see that it is 40%
Hey there! please help I can't find the answer in my textbook for these notes :)
During the _________, ATP and NADPH molecules produced in the light-dependent reactions are used to produce high-energy sugars from carbon dioxide.
Thank you so much!
Answers
Answer: Overview of the Calvin cycle
In the Calvin cycle, carbon atoms from CO2start text, C, O, end text, start subscript, 2, end subscript are fixed (incorporated into organic molecules) and used to build three-carbon sugars. This process is fueled by, and dependent on, ATP and NADPH from the light reactions.
The graph represents the outcome of natural selection in a population of Darwin's finches. Which statement best describes this outcome?
A) Finches that are best suited to survive and reproduce (points 1 and 3) are more likely to pass on beneficial traits to their offspring; those less suited (point 2) fail to pass on their traits to their offspring.
B) Finches that are least suited to survive and reproduce (points 1 and 3) are more likely to pass on beneficial traits to their offspring; those more suited (point 2) fail to pass on their traits to their offspring.
C) Finches that are best suited to survive and reproduce (point 2) are more likely to pass on beneficial traits to their offspring; those less suited (points 1 and 3) fail to pass on their traits to their offspring.
D) Finches that are least suited to survive and reproduce (point 2) are more likely to pass on beneficial traits to their offspring; those more suited (points 1 and 3) fail to pass on their traits to their offspring.
Answers
Answer:
i
Explanation:
when do birds use their teeth????
Answers
Answer:
to eat worms
Explanation:
Answer:
Birds do not have teeth, however...Explanation:
[tex]--------------------------------------------[/tex]
According to The Cornell Lab, "Birds do not have teeth, however, they may have ridges on their bills that help them grip food, but this does not count as teeth. So what about birds that have “tooth” in their name, like Double-toothed Kite? Some birds of prey have a sharp ridge or “tomial tooth” on the bill that they use to bite into their prey when subduing it. But these modifications to the bill surface are not considered the same thing as individualized teeth seen in other animals."
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Hope this helps! <3
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Describe how a solid rock in the lower level of the crust could become a molten rock.
PLS HELP I WILL MARK BRAINLIEST
Answers
Answer:
The higher the pressure on anything, the hotter it will get. The hotter a rock gets, the more possibility that it will have to melt.
So you're out the base of the crust, with any kilometers of crust above you, and that's a lot of pressure. Then take into account that you have thousands of degrees of heat coming from the mantle-core boundary, and directly from radioactive decay within the mantle, which only adds to the temperature.
The net result is like melting a stick of butter. It's very easy to do without a lot of energy -- since Earth is a massive ball of thermal energy, then well... it's easy to do.
The arrow in a chemical equation represents the ________________ _________________
Answers
Answer:The subscript
Explanation:
1. Are the following cell parts located in a plant cell, animal cell or both?
-Nucleus
-Cell Wall
-Mitochondria
-Cytoplasm
-Chloroplasts
-Vacuole
-Cell Membrane
Answers
Answer:
1. both
2. Plant cell
3. Plant cell
4. both
5. Plant cell
6. Both
7. Both
Explanation:
Plant cells have a cell wall and a cell membrane, unlike animal cells that only have a cell membrane.
Both have a cytoplasm, vacuole, mitochondria, and a nucleus.
Hope this is correct. Good luck with your studies.
Both plant cell and animal cell have a nucleus, mitochondria, cytoplasm, and cell membrane. Only a plant cell have cell wall, chloroplast and vacuole.
Difference between Plant cell and Animal Cell?Plant cells are the unit of plants. These cells are present in all green and non-green cells in a plant. However, an animal cell is the fundamental unit of an animal. Different types of animal cells make up an organism.
Plant cell contain an outermost covering called the cell wall. It protects them from shock and provides mechanical strength to the cell. It is absent in the animal cell.
Chloroplast is also present in the plant cells whereas it is absent in the animal cells. It is a double-membranous structure. A chloroplast is responsible for the process of photosynthesis as it contains chlorophyll pigment. A vacuole is also present in the plant cell and absent in an animal cell. The vacuole is responsible for the storage of reserved food materials in the form of complex sugars.
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pls help will give brainliest
Answers
Answer:
C
Explanation:
What is the niche of the shark whales?
Answers
Answer:
The whale sharks niche in the environment is essentially population control. The whale shark spends all day eating and without it the populations of krill and plankton would increase by a large amount.
Explanation:
Whale sharks have a broad distribution in tropical and warm temperate seas, usually between latitudes 30°N and 35°S. They are known to inhabit both deep and shallow coastal waters and the lagoons of coral atolls and reefs. Australia is one of the most reliable locations to find whale sharks. It is very difficult to conduct research on the shark's role in the ecosystem so scientists aren't sure what would happen if sharks became extinct. ... If the whale shark becomes extinct, there might be an increase in plankton. However, plankton are also eaten by several species of whale. Whale sharks are one of the most amazing animals in the world — and while they may be sharks, they're also one of the most gentle fish in the sea. In fact, whale sharks are so gentle, they're completely safe to swim around. Our Whale Shark Encounter tour gives you the opportunity to do just that.
That's one scary shoork-
PLEASE PLEASE PLEASE HELPPP DUE VERY SOONNNN!!!! In dogs, the gene for fur color has two alleles. The dominant allele (F) codes for grey fur and the recessive allele (f) codes for black fur.
3) The f e m a l e d o g is h e terozygous. The m a l e d o g is h o m o z yg ous recessive. Figure out the phenotypes and genotypes of their possible puppies by using a Punnett Square.
Answers
Answer:
Genotypes:
FF: 0%
Ff: 50%
ff: 50%
Phenotypes:
Black fur: 50%
Grey fur: 50%
How is a phospholipid structurally related to a triglyceride?
Help
Answers
Who likes Pokémon in this website?
Answers
Answer:
Bruh which website
Explanation:
Plz tell me btw I love pokémon
Someone please help!!! Anyone!?!? I'll give A Brainliest
Answers
Answer:
These are Punnet squares. The answer for 1 is 50% The answer for 2 is 100%
The answer for 3 is 100%
Explanation:
I hope this helps!! Have a great day!!!
Please help me with this
Answers
Answer:
uses energy to work(?)
Explanation:
Answer:
uses energy to work
Explanation:
Which statement is the best example of an object and motion that would make it hard for people to accept Newton’s first law?
A. A rolling ball eventually slows down and comes to a stop.
B. A box does not move when pushed equally from opposite sides.
C. The heavier the load in a cart, the harder the cart is to turn.
D. A wago
Answers
Answer:
a
Explanation:
object in motion will stay in motion until it is acted upon
Answer:
A
Explanation:
Nitrogen is a critical component of what organic compounds?
Answers
Answer:
Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds.
Explanation:
(I just copy and paste from google)
Answer:
Its essential for growth and reproduction in both plants and animals.
Explanation:
It is found in amino acids that make up proteins, in nucleic acids.
What is this organelle
Answers
onikal tiking yg Ten tow no as nik lia
If you have a viral infection, why should you cover your mouth when you sneeze? * To prevent other people from breathing in the viruses you expel To prevent viruses from infecting cells in your nose and mouth To keep as many viruses as possible in your own body To get all of the cold viruses out of your body and onto your skin.
Answers
Answer:
To prevent other people from breathing in the viruses you expel
Explanation:
CORRECT
Which of the following is NOT related to lipids (does not belong)?
fatty acids
b
Oc
energy storage
sugars
fats, oils, waxes
Answers
Answer:
sugars are not related to lipids
4
_ is a component of soil made entirely of decomposed organic remains. This component increases soil fertility and _
the ability of soil to retain water.
A. Humus; increases
B.
Parent material; decreases
C.
Subsoil; increases
D
Topsoil; decreases
Answers
Answer:
The answer is A
Explanation:
am 100% sure