Treatment of a mixture of CH₃Cl and C₂H₅Cl with sodium in dry ether can generate
Options
(a) only ethane (b) ethane and butane (c) propane and butane (d) ethane, propane and butane
Correct […]
The difference between RNA and DNA is because of
Options
(a) sugar and phosphate (b) sugar and base (c) phosphate and base (d) base only
Correct Answer:
sugar and base
Explanation:
No explanation […]
The number of chromosomes present in the cells of the bread wheat Triticum aestivum suggests that it is
Options
(a) hexaploid (b) diploid (c) tetraploid (d) pentaploid
Correct Answer:
hexaploid
Explanation:
No explanation […]
Cell adhesion and cell recognition occurs due to biochemicals of cell membrane namely
Options
(a) lipids (b) proteins (c) glycoproteins and glycolipids (d) both a and b
Correct Answer:
glycoproteins and glycolipids
Explanation: […]
Cell organelles common in Monera and Protista is
Options
(a) Lysosome (b) chloroplast (c) ribosomes (d) vacuole
Correct Answer:
ribosomes
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which of the following is non-membranous cell organelle?
Options
(a) centriole (b) nucleus (c) mitochondria (d) chloroplast
Correct Answer:
centriole
Explanation:
No explanation available. Be the first to write the explanation for this […]
The members of which of the following phyla possess specialized stinging cells having poison filled barbed threads?
Options
(a) protozoa (b) porifera (c) coelenterata (d) rotifera
Correct Answer:
coelenterata
Explanation:
No explanation available. […]
For human, the bearable limit of noise is
Options
(a) 180 db (b) 140 db (c) 150 db (d) 175 db
Correct Answer:
140 db
Explanation:
No explanation available. Be the first to […]
DDT belongs to which of the following class of pesticides
Options
(a) organophosphate (b) organochloride (c) triazines (d) carbamates
Correct Answer:
organochloride
Explanation:
No explanation available. Be the first to write the explanation […]
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