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प्रश्न
The process of release of the ovum from a mature follicle is called ______.
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उत्तर
The process of release of the ovum from a mature follicle is called ovulation.
Explanation:
The secondary oocyte forms a new membrane called the zona pellucida surrounding it. The Graafian follicle now ruptures to release the secondary oocyte (ovum) from the ovary, a process called ovulation.
संबंधित प्रश्न
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
Briefly describe the process of spermatogenesis.
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
What is gamete formation?
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
If newborns are produced at the age of menopause, they may be with some abnormalities. Why?
In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?
Give a schematic representation of spermatogenesis and oogenesis in humans.
Expand the acronym.
LH
Which of the following correctly describes the secondary oocyte?
Draw a labelled diagram of a Graafian Follicle.
In human beings, the largest cell formed during Oogenesis is ______
Acrosome reaction in sperm is triggered by ______.
The immature male germ cell undergo division to produce sperms by the process of spermatogenesis.
Choose the correct one with reference to the above.
Connective tissue around seminiferous tubules possess endocrine cells called ______.
The nutritive cells found in seminiferous tubules are ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
The principal tail piece of human sperm shows the microtubular arrangement of ______.
Select the correct sequence of stages of spermatogenesis in a human male ______.
After the release of the secondary oocyte, the Graafian follicle develops into ______.
Fetal sex can be determined by examining cells from amniotic fluid looking for:
In the process of fertilization, this is true:
3-celled male gamete develops in:
The mother germ cells are transformed into a mature follicle through series of steps. Provide the missing steps in the blank boxes.
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?
In spermatogenesis, at the end of the first meiotic division ______ are formed.
Answer the following:
How many primary spermatocytes and oocytes are required for the formation of 100 spermatozoa and ova?
The diagram given below shows the various steps in spermatogenesis.
- Name the parts labelled '1', '2' and '3'.
- Name the process by which part '3' changes to part '4'.
Select a correct pair of cells with identical set of chromosomes.
