MCQ
Example of qualitative inheritance is
- ✓Colour of skin
- BColourblindness
- CKlinefelter's syndrome
- DAlkaptonuria
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$(a)$ Metagenesis is observed in Helminths.
$(b)$ Echinoderms are triploblastic and coelomate animals.
$(c)$ Round worms have organ-system level of body organization.
$(d)$ Comb plates present in ctenophores help in digestion.
$(e)$ Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.
| A. UAU | I. Arginine |
| B. CAU | II. Alanine |
| C. CGU | III. Histidine |
| D. GCC | IV. Tyrosine |
Reason : Proteins which can be synthesized only by genetic engineering are effective against viruses.
$T$-cells are lymphocytes which produce the cellular immunity. These are developed from