In mammalian sperm, spirally arranged mitochondria are present in
Head portion
Middle piece
End piece of the tail
Principal piece of tail
Which of the following is not evident that the pattern of cleavage is determined by factors in the egg cytoplasm rather than by genes of zygote
The amniotic fluid is taken out with the help of surgical needle and separation of the embryo cells present in this fluid is done by
If both ovaries are removed from a rat, then which hormone is decreased in blood
The eggs in which fate of every part of the egg becomes fixed are called
What is correct for Testis of human ?
shape - Length