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3 years ago

Why do cells make a copy of their dna

Biology

2 answers:

Arada [10]3 years ago

6 0

Answer:

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.

prohojiy [21]3 years ago

5 0

Answer:

By replication

Explanation:

Cells can replicate their DNA precisely. Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.

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The basic requirements for plants to survive are _____. oxygen carbon dioxide nitrogen carotenoids nutrients water auxin sunligh

Oxana [17]

Oxygen and sunlight is need in plants

4 0

3 years ago

What is the Kinsey Scale?A. A six-point rating system that ranges from exclusively heterosexual to exclusively homosexual orient

QveST [7]

Answer:

The correct answer is option A. "A six-point rating system that ranges from exclusively heterosexual to exclusively homosexual orientation".

Explanation:

Alfred Charles Kinsey was a scientific who revolutionized the way sexology was seen and founded the Institute for Sex Research at Indiana University. Kinsey developed what is known as the Kinsey Scale, a six-point rating system that ranges from exclusively heterosexual to exclusively homosexual orientation. The first results of applying the Kinsey Scale were published by Kinsey in 1948 on the book "Sexual Behavior in the Human Male".

8 0

4 years ago

Which of the following statements is true regarding DNA replication? A. The 5' to 3' orientation of the new strand will depend u

algol [13]

Answer:

These options are true about DNA.

A. The 5' to 3' orientation of the new strand will depend upon where it is in the replication bubble relative to the position where replication first starts.

B. The new strand is the opposite of the template strand.

C. The new strand is an exact complement to the template strand.

Explanation:

Since the two strands of a DNA double helix are antiparallel, this 5′-to-3′ DNA synthesis can take place continuously on only one of the strands at a replication fork (the leading strand). On the lagging strand, short DNA fragments must be made by a “backstitching” process. The opposite strand with a base sequence directly corresponding to the mRNA sequence is refereed as coding strand. See images for clarification.

If you want to study more here is the reference:

Alberts B, Johnson A, Lewis J, et al. Molecular Biology of the Cell. 4th edition. New York: Garland Science; 2002. DNA Replication Mechanisms.

3 0

3 years ago

What cycle is closely related to the carbon cycle ?

Nitella [24]

The carbon and oxygen cycles are closely related, because they are directly associated with photosynthesis and respiration processes. Oxygen constitutes about 21% of the atmosphere. In free form, oxygen (O2) is essential for aerobic respiration (eg by animals), where it is returned to the atmosphere as carbon-dioxide.

8 0

3 years ago

Define continuous cropping

aalyn [17]

Answer:

Continuous cropping is the growing of a single crop species on a field year after year. It's the act of progressive planting, and allows soil fertility to recover.

I hope this helps! :)

6 0

3 years ago