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प्रश्न
Draw a labelled diagram of a section through the ovary.
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उत्तर १
उत्तर २
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संबंधित प्रश्न
The process of release of the ovum from a mature follicle is called ______.
Describe the process of oogenesis in human female.
What is gamete formation?
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
Sex organs produce gametes which are diploid.
The male sex hormone testosterone is secreted from ____________.
The glandular accessory organ which produces the largest proportion of semen is ____________.
Draw a labeled sketch of a spermatozoan.
During spermatogenesis, spermatogonium grows in size to become ______.
The secondary oocyte enter into the fallopian tube through the ______.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
Identify the correct stages (P - S) in the given diagram of spermatogenesis.
Select the pair of cells which does not divide further by mitosis.
How many sperms are formed from a secondary spermatocyte?
Extrusion of second polar body from egg nucleus occurs ______.
By which process sperms released from the seminiferous tubules?
How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.
Cells of corona radiata remain grouped together by ______.
Preparation of sperm before penetration of ovum is ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
Which of the following are called dual gland?
Select the correct sequence of stages of spermatogenesis in a human male ______.
Penetration of the sperm in the ovum is followed by ______
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?
Observe the given figure and answer the questions that follow.
- Label A and B.
- Identify the process.
- What happens during this process and what is formed?
If for a species 2n = 16, then during Ist prophase and IInd prophase of the meiotic division of a cell, how many tetrads and diads will be formed:
In human females, meiosis II is not completed until:
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
