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प्रश्न
Which among the following has 23 chromosomes?
विकल्प
Secondary oocyte
Oogonia
Zygote
Spermatogonia
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उत्तर
Secondary oocyte
APPEARS IN
संबंधित प्रश्न
Ovulation is induced by a hormone called ______.
Define spermiogenesis.
______ type of reproduction occurs without fusion of gametes.
Multiple choice question.
The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?
In meiosis, the number of chromosomes becomes ___________.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
Answer the following type of question Assertion (A) and Reason (R).
(A) - Head of the sperm consists of acrosome and mitochondria.
(R) - Acrosome contains spiral rows of mitochondria.
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.
Identify the proper order of spermatogenesis and choose the correct option.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
Which of the following is diploid?
Draw a labelled diagram of a Graafian Follicle.
By which process sperms released from the seminiferous tubules?
Corona radia is made up of ______.
Cells of corona radiata remain grouped together by ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called ______.
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?
Meiotic division of the secondary oocyte completed ______.
In which organ does oogenesis take place?
