MCQ
Sex linked disease is
- AHaemophilia
- BColourblindness
- CSickle-cell anaemia
- ✓Both $(a)$ and $(b)$
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Reason : In the primitive atmosphere, oxygen was involved in forming ozone
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: