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प्रश्न
Define.
Fertilization
Define the following term:
Fertilization
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उत्तर
The formation of a zygote by the union of male and female gametes is known as fertilization.
संबंधित प्रश्न
Rewrite the terms in the correct order so as to be in a logical sequence.
coitus, ovum, Sperm, sperm duct, urethra, Vagina.
Name the following:
Organ where fertilization occurs.
Name the following:
Virgin birth
Where does fertilization occur?
Name the female sex hormones and structures which secrete them.
How is the fetus protected?
Give Reasons
Millions of sperms are produced at ejaculation yet one sperm actually fertilizes the ovum. Explain.
Study the diagram given below and then answer the questions that follow:
(i) Name the part labeled A. Name any two hormones produced by the part labeled A.
(ii) What happens to the part labeled B.
(1) if fertilization takes place?
(2) If fertilization does not take place?
(iii) Where does fertilization occur?
(iv) Draw a neat diagram of the human sperm as seen under high magnification and label the following parts.
(1) Acrosome
(2) Mitochondria
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Sperm is a single cell.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Vas deferens transports sperms into the urethra.
What is fertilization?
In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is
What is sex chromosomes?
What are the functions of each hormone in the neurohypophyseal hormone?
Match the items in column I with those in column II and write down the matching pairs (some may not match).
| Column I | Column II | ||
| (a) | Acrosome | (i) | An embryo which looks like human baby. |
| (b) | Gestation | (ii) | Luteinizing hormone |
| (c) | Menopause | (iii) | Ovum producing cells. |
| (d) | Foetus | (iv) | Semen |
| (e) | Oogenesis | (v) | Spermatozoa |
| (f) | Ovulation | (vi) | Complete stoppage of menstrual cycle. |
| (vii) | Time taken by a fertilised egg till the delivery of baby. |
During copulation, approximately how much semen containing how many spermatozoa is deposited in the vagina?
On which day of the menstrual cycle does ovulation typically occur?
Which ions enter the sperm during capacitation, causing rapid whiplash movements of the tail?
What is the duration of capacitation in the female genital tract?
What is karyogamy, also known as amphimixis?
