LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following would lead to genetic variation?
A
crossing over
B
independent assortment
C
mutations
D
all answers are correct
Explanation: 

Detailed explanation-1: -The three main sources of genetic variation arising from sexual reproduction are: Crossing over (in prophase I) Random assortment of chromosomes (in metaphase I) Random fusion of gametes from different parents.

Detailed explanation-2: -Thus, the correct answer is ‘The process of natural selection directly creates genetic variation.

Detailed explanation-3: -Mutation, gene flow, sexual reproduction, random mating between organisms, random fertilization, and crossing over are the main cause of genetic variation.

Detailed explanation-4: -Major causes of variation include mutations, gene flow, and sexual reproduction.

There is 1 question to complete.