Anagenesis is a phenomenon by which the evolution of species takes place. The species are gradually evolved and they keep on existing as interbreeding species. The anagenesis persists within the same lineage of organisms and it is different from cladogenesis in the regard that there occurs splitting which leads to separate species. The formation of new species from the ancestral species is not always the possibility in the case of anagenesis.
Over the course of about 2 million years, the size of the cranium part of the human brain has been doubled in size and the toe of the horse has been reduced from 4 to only 1.
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
