Organic evolution would have not been taken place
If individuals in a population did not show genetic variations
If individuals did not inherit characters acquired during their life to their offsprings
If somatic variations did not inherit
If somatic variations were not transferred to genetic variations
Initiating force of evolution is
In a certain population, the frequency of three genotypes is as follows
Genotypes : | $BB$ | $Bb$ | $bb$ |
frequency : | $22\%$ | $62\%$ | $16\%$ |
What is the likely frequency of $B$ and $b$ alleles ?
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
The tendency of population to remain in genetic equilibrium may be disturbed by
Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism ?