When does the cell grow and make a copy of DNA?

Answer 1

The whole cell cycle is divided into 4 phases: (1) G1 phase = growth period, (2) S phase = synthesis of the DNA, (3) G2 phase = correct errors and prepare to divide, and (4) Mitosis. Synthesis phase is very critical because this is the stage where the whole DNA molecule is duplicated by the process of replication. G1 is the shortest period of all stages.

Answer 2

The Deoxyribonucleuc Acid (or DNA), will split itself right down the middle. On the Glucouse, there is 1 nitrogen base. This base could be: Adnine, Thymine, Cytosine, or Guanine. Adnine will only pair up with Thymine. Cytosine will only pair up with Guanine. In animal cells, we have things called ribosomes that make the "Matches" for the other nitrogen bases. They are like "Extra puzzle pieces" waiting to be put together. Once an "Extra" finds it's match, it hooks together with it. Once they all find a match: BANG! A whole new set of IDENTICAL DNA. ~Elle~

By a process called "Replication".

When replicating, the DNA molecule "unzips", and each side serves as a template.

On each half of the molecule, a new half is built.

In eukaryotes, this is during the S phase of the cell cycle, preceding mitosis and meiosis. The two resulting double strands are identical (if the replication went well), and each of them consists of one original and one newly synthesized strand. This is called semi conservative replication. The process of replication consists of three steps, initiation, elongation and termination. Artificial DNA replication is carried out through polymerase chain reaction.

Another explanation:

DNA molecules make individual copies of themselves by replication. Before a cell divides, each strand of genetic information makes a duplicate. During cell division the duplicates separate, so each cell has a complete set of genetic information. Replication is important to each individual organism because without it, cell division would not be possible.

DNA makes copies of itself during a process known as DNA replication. Whereby the double helix DNA structure divides into 2 strands and picks up nucleotides from the nucleosap. in this way DNA makes many copies of itself.

The DNA molecule split down the middle, where the bases meet. The bases on each side of the molecule are used as a pattern for a new strand.

(When chromosomes are duplicated before mitosis, the amount of DNA in the nucleus is doubled).

The two strands of the DNA molecule unwind and separate. Each strand then becomes a pattern on which a new molecule is formed.

The appended link is an animation of the DNA replication process/

they break apart and they find other DNA strands and form more DNA strands.

Before a cell can undergo mitosis/meiosis, the DNA must first be replicated. In this complex process the double helix shape of DNA is unwound by proteins known as helicase. Meanwhile proteins known as DNA polymerases replicate the two DNA strands- the leading strand and the lagging strand. Other proteins help with the process. For example, topoisomerases keep the DNA from super coiling as helicase unwinds the helix.

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The Steps:

Step 1. An enzyme breaks the bonds between the nitrogen bases. The two strands of DNA separate.

Step 2. The bases attached to each strand then pair up with new bases from a supply found in the cytoplasm. Adenine pairs with thymine. Cytosine pairs with guanine. The order of these pairs in each new strand of DNA will match the order of base pairs in the original DNA.

Step 3. Sugar and phosphate groups from the side of each new DNA strand. Each new DNA molecule now contains one strand of the original DNA and one new strand.

Answer 3

Copying DNA is the first step before transcription and translation to form proteins. Thus if you do not copy dna you will not have the templates for DNA synthesis and no proteins and Amino Acids will be make in your body nor will you be able to grow and reproduce.

Answer 4

its called the cell cycle...

yes im a nerd...

The exact stage of the DNA copying is interphase

Answer 5

Interphase.

This is one of the forms of mitosis.

Answer 6

To the person that put S your wrong hoe. The answer is interphase

Answer 7

miosis, Interphase

Answer 8

metephase

Answer 9

S Phase