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प्रश्न
Define gametogenesis.
उत्तर
Gametogenesis is the process of formation of gametes i.e., sperms and ovary from the primary sex organs in all sexually reproducing organisms. Meiosis plays the most significant role in the process of gametogenesis.
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.
Name the hormones involved in regulation of spermatogenesis.
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
At what stage of development are the gametes formed in newborn male and female?
Give a schematic representation of spermatogenesis and oogenesis in humans.
Identify the given image and label its parts marked as a, b, c and d
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
Which of the following enter the maturation phase of oogenesis?
Identify the longest period of menstrual cycle.
Which among the following has 23 chromosomes?
At the time of organogenesis, genes regulate the process at different levels and at different time due to ______.
During embryonic development, the establishment of polarity along anterior/posterior, dorsal/ventral or medial/lateral axis is called ______.
Gray crescent is the area ______.
Acrosome is a type of ______.
Mark the odd one.
Penetration of the sperm in the ovum is followed by ______
In human females, meiosis II is not completed until:
Sketch and label the process of oogenesis.
