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SSSSS [86.1K]
3 years ago
12

Why is the pairing of nitrogen bases key to understanding how DNA replication occurs?

Biology
1 answer:
Burka [1]3 years ago
7 0

The DNA replication occurs by preparing a new strand of DNA that is based on the template strand only. So understanding the nitrogen base pairing is very essential for understanding DNA replication.

<h3><u> Explanation:</u></h3>

DNA replication occurs prior to any type of cell division in all organisms. In case of humans, the DNA that is to be replicated needs to be de winded by means of decondensation of chromosomes into chromatin fibres and then to DNA fibres. Then there are enzymes like helicase and gyrase which helps in breaking the hydrogen bonds between two strands of DNA and to open it up for enzymes to get attached.

Then the enzyme DNA dependent DNA polymerase works on both the strands of DNA where it reads the mother DNA strand as a template and then brings deoxyribonucleotides complementary to the template strand and then polymerises it with the previous nucleotide to form a new DNA strand. Thus two DNA strands are produced which are again complementary to each other, leading to the production of a new daughter DNA. So, understanding the complementary base pairing is very essential to understand the DNA replication.

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The procedure can decrease the odds of having a child with CF by performing an in vitro fertilization procedure and screening the embryo for the CF alleles is referred to as preimplantation genetic diagnosis.

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2 years ago
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Robust australopithecines are also known by the genus (b) paranthropus.

Australopithecines are the sub-tribe of the tribe Hominini. Now extinct, these are the close ancestors of humans now. They have small body and small brains but they could walk on two legs (bipedal movement). They are considered to be the result of adaptive radiation.

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