Chapter 1: How Do Organisms Reproduce?- Exercise- 1

Science

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Chapter 8: How Do Organisms Reproduce?

Class: X

Exercise number 1

 

Question 1

What is the importance of DNA copying in reproduction?

Answer 1

DNA (Deoxyribonucleic acid) carries the basic genetic characteristics from parents to the offspring. DNA also contains proteins which control all the functions and structure of an individual. DNA copying is very important during reproduction or else the characteristics of genes will not be carried from one generation to the next and offspring will be entirely different from parents.

 

 

Question 2

Why is variation beneficial to the species but not necessarily for the individual?

Answer 2

Variation is beneficial to the species but not for an individual because it makes species more adaptable to survive under drastic environmental conditions change. For example-If there’s a extreme environmental condition change, some of them will be able to survive, if not all. But an individual may or may not survive.