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vfiekz [6]
3 years ago
9

Which statement is true about DNA ? a.Both of the original DNA strands act as templates during replication. b.It is a single-str

anded molecule. c.Only one of the original DNA strands acts as a template during replication. d.Its replication takes place in the cytosol.
Biology
1 answer:
Ronch [10]3 years ago
4 0

Answer:

The correct answer is a. Both of the original DNA strands act as templates during replication.

Explanation:

During the DNA replication both the strands of the DNA act as the template strand. DNA polymerase is the enzyme that replicates both the DNA strand.  

One of the strand of DNA gets continuously replicated which is called the leading strand. While the other strand is replicated in a discontinuous manner called lagging strand.

As due to discontinuous replication in the lagging strand short DNA fragments are formed called Okazaki fragments which are joined together by DNA ligase. So both the original DNA strands act as template during replication.

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Answer:

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Explanation:

The traits in the organisms are controlled by the genes which are present in the form of two alleles on the chromosomes. Each allele represents the variant of the trait which is determined when these alleles unite during sexual reproduction.

The allele can be dominant when it shows its effect or it can be recessive when it is suppressed during fusion.

In the given question, the studied trait is the pattern of the hair which is present in two variants: the curly hair and the straight hair. When the parents for these traits were crossed they produced offspring which was intermediate between the curly and the white hair. This intermediate trait shows that neither of the two alleles which control the trait is dominant and the trait blended. This natural process is known as incomplete dominance.

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