What is the difference between a primary oocyte and a secondary oocyte ?
What is the difference between a primary oocyte and a secondary oocyte ?
In pregnancy, mother egg cell is in prophase - $1$ in ovary primary oocyte is formed. In maturation, haploid primary oocyte transforms into haploid secondary oocyte by completing meiosis and meiosis completes and female gametes (ovum) is produced.
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The immatured stage eggs are called as
The immatured stage eggs are called as
- [AIPMT 1993]
$A$ - Acrosome possesses mitochondria.
$R$ -Middle piece of sperm is filled with enzymes
$A$ - Acrosome possesses mitochondria.
$R$ -Middle piece of sperm is filled with enzymes
At the end of first meiotic division, the male germ cells differentiate into
At the end of first meiotic division, the male germ cells differentiate into
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
- [AIPMT 2008]
Identify $A, B, C, D$ and $E$ in given figure.
Identify $A, B, C, D$ and $E$ in given figure.