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Earn 100
Which of the following type of blastula is formed due to superficial meroblastic cleavage in insects?
75% studentsanswered this correctly
Important Questions on Human Reproduction
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Match the following columns and select the correct option:-
| Column-I | Column-II | ||
| (a) | Ovary | (i) | Human chorionic gonadotropin |
| (b) | Placenta | (ii) | Estrogen & Progesterone |
| (c) | Corpus luteum | (iii) | Androgens |
| (d) | Leydig cells | (iv) | Progesterone only |
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Given below are statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Endometrium is necessary for implantation of blastocyst.
Reason R: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from the options given below:
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Match the months listed in Column - I write the organogenesis of foetus in Column - II.
| Column - I | Column - II | ||
| (i) | First month | (a) | Separation of eye lids |
| (ii) | Second month | (b) | Hairs on head |
| (iii) | Fifth month | (c) | Heart |
| (iv) | Six month | (d) | limbs and Digits |
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I) The first movements of the foetus
II) The foetus develops limbs and digits
III) The embryo's heart is formed
IV) The body is covered with fine hair
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Match the following:
| List I | List II | ||
| A | Totipotent cell | I | Haemopoietic stem cells |
| B | Pluripotent cell | II | Muscle stem cell |
| C | Multipotent cell | III | 8 cell stage blastocyst |
| D | Unipotent cell | IV | Inner cell mass |
| V | Mast cell |
