The phenomenon of natural selection applies only on those traits of a population which are heritable. The beneficial traits are selected against the deleterious traits. Consequently, the allele frequency of the beneficial traits increases whereas that of the deleterious is decreased. This process is named as adaptive evolution.
Therefore, we can say that adaptive evolution is driven by natural selection as it increases the occurrence of the beneficial traits. These processes are applied on the individual level and they select only those individuals which contribute more to the gene pool of the next generation.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
Explain the type of speciation (allopatric, parapatric, or sympatric
In fruit flies, curved wings are recessive to straight wings,
A recessive allele in mice results in an unusally long neck.
