Advertisements
Advertisements
प्रश्न
At the time of birth, there are _______________ oocytes in the ovary of a female foetus.
पर्याय
1 to 2 million
2 to 3 million
2 to 4 million
none of these
Advertisements
उत्तर
At the time of birth, there are 2 to 4 million oocytes in the ovary of a female foetus.
APPEARS IN
संबंधित प्रश्न
The process of release of the ovum from a mature follicle is called ______.
Ovulation is induced by a hormone called ______.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
Expand the acronym.
hCG
During spermatogenesis, spermatogonium grows in size to become ______.
Which of the following correctly describes the secondary oocyte?
Besides activating the egg another role of a sperm is to carry ______ to egg.
Preparation of sperm before penetration of ovum is ______.
The head of the epididymis at the head of the testis is called ______.
The principal tail piece of human sperm shows the microtubular arrangement of ______.
Read the following and answer from given below:
Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.
Which cell division is involved in the formation of secondary oocytes?
Follicular atresia is:
Capacitation refers to changes in the ______.
How many primary oocytes produce one oogonia?
Given below are two statements.
- Statement I: The spermatids are non-motile and non-functional which get transformed into functional spermatozoa by the process of spermiogenesis.
- Statement II: During the process of this change, the spermatids remain held to each other and to Leydig's cells by cytoplasmic bridges.
In light of the above statements, select the correct answer from the option given below.
Process of maturation and development of sperms ______.
Sketch and label the process of oogenesis.
What is spermatogenesis?
