CBSE 2025 · Region 1 · Set 1 · Q6 · 1 mark
Match the following items of Column-I with that of Column-II :
Column-I Column-II (a) Trophoblast (i) Embedding of blastocyst in the endometrium (b) Implantation (ii) Group of cells that would differentiate as embryo (c) Inner cell mass (iii) Embryo with $\displaystyle 8$-$\displaystyle 16$ blastomeres (d) Morula (iv) Outer layer of blastocyst
Choose the option that matches Column-I with Column-II correctly.
| Column-I | Column-II |
| (a) Trophoblast | (i) Embedding of blastocyst in the endometrium |
| (b) Implantation | (ii) Group of cells that would differentiate as embryo |
| (c) Inner cell mass | (iii) Embryo with $\displaystyle 8$-$\displaystyle 16$ blastomeres |
| (d) Morula | (iv) Outer layer of blastocyst |
Official answer
From CBSE’s own marking scheme for this paper.
(A)
(a) (iv), (b) (i), (c) (ii), (d) (iii)
Human ReproductionFertilisation and ImplantationRemembermcqeasy
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.