How many chromosome numbers are present in primary spermatocytes of human ?
How many chromosome numbers are present in primary spermatocytes of human ?
- A
$46$
- B
$44$
- C
$23$
- D
$22$
Similar Questions
In a simplest type of placenta the foetal blood is separated from the maternal blood by six barriers. How many barriers are lost in human placenta
In a simplest type of placenta the foetal blood is separated from the maternal blood by six barriers. How many barriers are lost in human placenta
Match the columns.
Column $I$
Column $II$
$(a)$ Multiplier phase
$(1)$ Undeveloped primary oocyte
$(b)$ Growth phase
$(2)$ Primary oocyte filled with developed cytoplasm
$(c)$ Maturation 1
$(3)$ Secondary oocyte
$(d)$Maturation 2
$(4)$ Germinal epithelial cells
Match the columns.
| Column $I$ | Column $II$ |
| $(a)$ Multiplier phase | $(1)$ Undeveloped primary oocyte |
| $(b)$ Growth phase | $(2)$ Primary oocyte filled with developed cytoplasm |
| $(c)$ Maturation 1 | $(3)$ Secondary oocyte |
| $(d)$Maturation 2 | $(4)$ Germinal epithelial cells |
Foetal membranes provide
Foetal membranes provide
Fertilisation in human beings occurs in
Fertilisation in human beings occurs in
$A$ : In frog gray cresent is formed during fertilization.
$R$ : It is because the black granules move towards the point of entry of the sperm in animal half
$A$ : In frog gray cresent is formed during fertilization.
$R$ : It is because the black granules move towards the point of entry of the sperm in animal half