MCQ
At which stage, ova stop forming in women:
- A13 years
- B20 years
- C40 years
- ✓50 years
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$i.$ In transcription, adenosine pairs with uracil.
$ii.$ Regulation of lac operon by repressor is referred to as positive regulation.
$iii.$ The human genome has approximately $50,000\; genes.$
$iv. $ Haemophilia is a sex-linked recessive disease.
Choose the correct option for $\mathrm{A}$ and $\mathrm{B}$
$I.$ multiple gene inheritance
$II.$ three separate genes controlling this trait
$III.$ single gene controlling this trait
$IV.$ two gene controlling this trait
$V.$ environment plays a significant role in this trait
Choose the correct option
$II.$ Chemical theory of origin of life was given by $....B......$