MCQ
Sickle cell-anaemia disorder arises due to
- ADuplication of a segment of $DNA$
- ✓Substitution in a single base of $DNA$
- CDeletion of a segment of $DNA$
- DDuplication in a base pair of $RNA$
✓
Answer
Correct option: B.
Substitution in a single base of $DNA$
b
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(ii) Hormones like human chorionic gonadotropin (hCG), human placental lactogen (hPL). estrogens, progesterone only secreted by pregnant female.
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(iii) Homo erectus probably lived about 1.5 mya which had a large brain around between 650- 800 cc.
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(ii) Two mya, Australopithecines probably lived in East African grasslands.
(iii) Homo erectus probably lived about 1.5 mya which had a large brain around between 650- 800 cc.
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(v) During ice age between 75,000-10,000 years ago modern Homo sapiens arose.
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