Spermatogenesis is a process through which the male gametes are produced. These sperm cells are produced inside the male reproductive organ known as testis which is composed of a large number of thin tightly coiled tubes called seminiferous tubules.
The walls of these tubules are constituted of the scattered cells which are termed as sertoli cells. The sertoli cells serve the purpose of providing support and nourishment to the immature sperm cells. The testes have the tendency to continuously produce sperm cells. It takes an immature sperm cell about 70 days to reach the final maturation stage.
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
