NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a situation that could cause evolutionary change that is NOT due to natural selection?
A
A volcano erupts and kills many individuals in a population.
B
A mutation produces sea stars that are less visible to predators.
C
An insecticide is sprayed in a community to combat mosquitoes.
D
Cattle are treated with antibiotics to prevent the spread of infections.
Explanation: 

Detailed explanation-1: -Evolutionary change is the heritable change in populations and species over time, due to mechanisms such as natural selection, random genetic drift, and sexual selection.

Detailed explanation-2: -Q. Which of the following is a situation that could cause evolutionary change that is NOT due to natural selection? A volcano erupts and kills many individuals in a population.

Detailed explanation-3: -Describe the four basic causes of evolution: natural selection, mutation, genetic drift, and gene flow.

Detailed explanation-4: -Three main mechanisms cause allele frequency change: natural selection, genetic drift, and gene flow.

There is 1 question to complete.