Speciation is a very gradual process which tells us how the populations have undergone the process of evolution in order to form various species. There are about four distinct forms of speciation, one of which is termed as allopatric speciation. It is defined as such speciation which results when the two populations belonging to the same species become isolated from one another and this isolation happens due to the changes in their respective geographies.
One of the reasons that compel the populations to migrate is excessive human activities like pollution, agriculture, civil engineering etc. In the course of time, these two populations acquire genetic variations that lead to varied characteristics between them. Consequently, these populations become so distinct from each other that they are unable to breed with each other.
How is an F′ factor different from an F factor?
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
In fruit flies, curved wings are recessive to straight wings,
What is an advantage and a disadvantage of this repair system?
Explain the type of speciation (allopatric, parapatric, or sympatric
The raw material for evolution is random mutation. Discuss whether or
With regard to the timing of conjugation, explain why the recipient
A woman who is heterozygous, Bb, has brown eyes;
A recessive allele in mice results in an unusally long neck.
Why is an antibody used in this experiment? From
