NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is Variation?
A
Noticeable change in 2 different species
B
It is the copying during reproduction is important for maintaining the body designs of different organisms to survive in the existing environment.
C
It refers to the visible difference between two individuals or among a group of individuals or species.
D
None of the above
Explanation: 

Detailed explanation-1: -Variation can be defined as any difference between the individuals in a species or groups of organisms of any species. mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and gene flow contribute to it as well.

Detailed explanation-2: -variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).

Detailed explanation-3: -Genetic variation is the presence of differences in sequences of genes between individual organisms of a species. It enables natural selection, one of the primary forces driving the evolution of life.

Detailed explanation-4: -The differences in the characters (or traits) among the individuals of a species is called variation. Variations can be in the morphological appearance (phenotype) or the genetic makeup (genotype) of an organism. It can be caused by change in the DNA sequence (mutation), random mating, etc.

Detailed explanation-5: -: a change in form, position, or condition. : amount of change or difference.

There is 1 question to complete.