Chapter 21.2, Problem 6RQ

Interpretation Introduction

Interpretation:

The function of the DNA needs to be explained.

Concept introduction:

DNA is composed of different chemical groups and bases. DNA is the genetic material. DNA has a double-helix structure, with mainly three components sugar and phosphate, and a nitrogenous base.

Answer to Problem 6RQ

There is the following function of the DNA-

Transfer of genetic information.

Replication.

Mutation.

Gene expression.

Explanation of Solution

There is a major function of DNA-

It is the genetic material, therefore responsible for carrying all the hereditary information.

Crossing over produces recombination.

It participated to handling all the metabolic reactions of the cells to synthesis the proteins. Change in the sequence and number of nucleotides cause mutation which is responsible for all abnormality and formation of new different species.

Conclusion

The function of the DNA is transfer of genetic information that takes place from one generation to other.

There are some other functions done by the DNA just like mutation, replication.