Prometaphase is the 2nd phase of mitosis in which the genetic material that is being duplicated gets separated and is divided equally among two identical daughter cells. The processes that occur during prometaphase are that the nuclear envelope which encloses the nucleus is broken down.
Consequently, the sister chromatids are released and this step is necessary for the separation of the genetic material among the daughter cells. Moreover, the kinetochore which is a protein in nature is formed around the centromere. The kinetochore microtubules originate from either side of the cell and get attached to the kinetochore.
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