When does the differentiation of mammary glands occur?
- AAfter parturition
- BDuring pregnancy
- CAt puberty
- DIn all the given stages
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During cleavage,which of the following is true for the embryo?
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View SolutionMatch the following with respect to stages of embryonic development in human.
Column $I$ Column $II$ $a$. Fully formed morula $i$. By end of $7^{\text{th}}$ day after fertilization $b$. Fully formed blastocyst $ii$. $15$ days after fertilization $c$. Completion of implantation process $iii$. By end of $4^{\text{th}}$ day after fertilization $d$. Fully formed gastrula $iv$. By end of $10^{\text{th}}$ day after fertilization
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| Column $I$ | Column $II$ |
| $a$. Fully formed morula | $i$. By end of $7^{\text{th}}$ day after fertilization |
| $b$. Fully formed blastocyst | $ii$. $15$ days after fertilization |
| $c$. Completion of implantation process | $iii$. By end of $4^{\text{th}}$ day after fertilization |
| $d$. Fully formed gastrula | $iv$. By end of $10^{\text{th}}$ day after fertilization |
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What is formed during gastrulation?
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