Why does a cell need to copy its DNA before undergoing mitosis?

Answers

Answer 1
Because existing cells need to divide to produce new cells. So the DNA needs to be copied before the cell division so that each new cell receives a full set of instructions.

Related Questions

Leaves of a healthy potted plant were coated with Vaseline to block stomata. Will this plant remain healthy for long? State three reasons for your answer.​

Answers

➜ If waxy coating is made on the surface of leaf, loss of water in the form of water vapour does not take place. Even the gaseous exchange will not take place. So, photosynthesis will either be reduced or will not take place.

The plant will not remain healthy for long because:

[i] Exchange of gases will not take place.

[ii] Photosynthesis will either be reduced or will not take place due to lack of CO2.

[iii] Transpiration will not take place, so there will be no mechanism of cooling in hot weather.

GIVING BRAINLIEST ANSWER CORRECTLY FOR 40 POINTS
List 3 people from the history of biotechnology and write one sentence about each persons contribution​

Answers

Answer:

Karl Ereky

Explanation:

He discovered it

Compare and contrast gradualism and punctuated equilibrium. Provide at least one comparison and one difference in your answer. You may use examples for each if that helps you with answering the question.

Answers

Answer:

Gradualism and punctuated equilibrium both are the process of evolution of species over time. However, the gradualism process involves the evolution that occurred slowly, occurring in small periodic changes in the gene pool over a long period of time. Whereas Punctuated equilibrium takes place there are longer periods of apparent stasis interrupted by the sudden change.

They both help in finding the relative change in evolution rate and assist in the study of the anatomical changes occurred during the evolution in different kind of animals or organisms.

The air in the thermosphere becomes thinner and thinner until it fades into space. True or false

Answers

Answer:

Well to be honest there are no unmistakable separating lines. Each layer mixes into the layer above it and the layer underneath it. Researchers are certain that the air becomes thinnerand more slender farther from the Earth's surface, until it at long last blurs off into space.

Explanation:

Answer:true

i cant explain they wont let me put in l-i-n-k-s

Which best describes how biotechnology may affect energy consumption?

A.It may make us use our natural resource more quickly

B.It may help to increase our use of fossil fuels

C.it may help to increase the generation of alternative fuels

D.It may negatively impact our energy consumption,

Answers

Answer:

How many patients had allergies or ear infections, but not both?

24

27

36 answer

40

Explanation:

B

What is an antiviral drug? Why is it different from an antibiotic?

Answers

Answer: Unlike most antibiotics, antiviral drugs do not destroy their target pathogen; instead they inhibit its development.

1 pts
Which of the following are examples of discontinuous variation? (select all that apply)

Answers

Answer:

what answer choices are there?

Explanation:

person's blood group or the color of a species of bird is what i think

Answer:

Hindi KO alam putang ina

Need help with this will make brainliest if right
Research on the different thermal conductivities of different materials. From the different values of the thermal conductivities give seven example of conductors and seven example of insulators

Answers

Answer:

conductors are like silver, gold, copper, steel, sea water, and iron. insulators are rubber, glass, oil, diamond, dry wood, and insulation.

Explanation:

A woman and her baby are on a TV talk show to determine whether or not a particular man is the father of the child. Mom is blood type O and the baby is blood type B. The potential dad is blood type A. Is it true or false that he is the father?

Answers

Answer:

No that is not the father

Explanation:

The fathers blood would have to be type B. Type A is dominate to O and co-dominate to B so you get AB blood, type B blood is dominate to O blood. So if the mom has to be OO to show O blood and the father has to be AA blood because he isn't AB or AO, which could make the baby AO or OO blood. Since none of this is true the "TRUE" father would have to have AB, BB, or Bo blood.

PLSSS ANSWER NOWWW
why is the mitochondria and the brain alike?

Answers

Answer:

Both control

Explanation:

Brain controls the body while mitochondria controls the cell

The Venn diagram provided compares and contrasts two domains of living things. Both domains include species of
bacteria. Select ALL of the terms which could be applied to only group A in the diagram.
A)
ancient
B)
unicellular
may be pathogenic
D)
live everywhere in the environment
E)
cell wall is made of peptidoglycan

Answers

Answer:

C,D,E

Explanation:

i just did it and got them right.Hope this helps :}

This group of Bacteria can be pathogenic, ubiquitous in the environment whose cell walls are composed of peptidoglycan. So, the correct options are C, D and E.

What is Bacteria?

Bacteria are defined as ubiquitous, mostly free-living organisms that contain a single biological cell that constitute a large domain of prokaryotic microorganisms. Bacteria are a few micrometers in length that were among the first life forms to appear on Earth, and are present in most of its habitats.

Some bacteria are harmful that serve a useful purpose that support many forms of life, both plant and animal, and are used in industrial and medicinal processes. This group A mentioned in the above example of Bacteria can be pathogenic, ubiquitous in the environment whose cell walls are composed of peptidoglycan.

So, the correct options are C, D and E.

Learn more about Bacteria, here:

https://brainly.com/question/8008968

#SPJ5

HELPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

Grabbing a handful of mixed candy out of a bowl.

Explanation:

For all other options you are choosing specific items... such as a book from the library, or choosing items written on your grocery list, or choosing what to pack for lunch. Bycatch in fishing refers to catching extra fish, other than what you are selecting for. By grabbing a handful of mixed candy from a bowl you are not selecting for a specific 'fish'.

What is biomass burned to produce

Answers

Answer:

Burning either fossil fuels or biomass releases carbon dioxide (CO2), a greenhouse gas. However, the plants that are the source of biomass for energy capture almost the same amount of CO2 through photosynthesis while growing as is released when biomass is burned, which can make biomass a carbon-neutral energy source.

Given the following sequence of DNA, write the correct sequence of complementary DNA bases.

TACCGATAA

Given the following sequence of DNA, write the correct sequence of complementary mRNA.

ACCGTACTG

Given the following sequence of DNA write the correct sequence of amino acids.

ATAGGCGTA

Answers

Answer:

1. ATGGCTATT

2. UGGCAUGAC

3. mRNA: UAU-CCG-CAU, amino acids: tyrosine(tyr)-proline(pro)-histidine(his)

Explanation:

For DNA, the complementary bases are T=A and C=G. This means every time you see one of these letters, the corresponding letter goes with it. For mRNA, the bases are T=A, A=U, C=G. It is the same except now, there should be no "T" in the mRNA sequence. With amino acids, you would first code for the mRNA sequence, every three letters being the amino acid sequence. To find the amino acid, you would look at a codon chart unless your teacher wants you to memorize them.  The first three letters of the amino acid are the abbreviation.

A student was explaining to the class about freshwater and the importance that it has to everyone’s life. What is NOT true about freshwater biomes?
A.
Freshwater biomes are found all over the world

B.
There is a wide variety of climates that have freshwater biomes

C.
There are different types of bodies of freshwater biomes

D.
They have more than 5% salt content

Answers

Answer:

D.

They have more than 5% salt content

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