Growth of pollen tube towards embryo sac is
Options
(a) chemotaxis (b) geotropism (c) thigmotaxis (d) all of these
Correct Answer:
chemotaxis
Explanation:
No explanation available. Be the first to write the explanation […]
Hydroids and leptoids are
Options
(a) conducting tissues of pteridophytes (b) water and food conducting tissues of mosses (c) conducting tissue of algae (d) food conducting tissues of gymnosperms
Correct Answer:
water and […]
In photosynthesis, the light energy is utilized to
Options
(a) convert ATP into ADP (b) convert ADP into ATP (c) change CH₃ into C₂H₅OH (d) change CO₂ into carbohydrate
Correct Answer:
convert ADP […]
Chromosomes which have definite role in sex determination are
Options
(a) allosomes (b) autosomes (c) chromosomes (d) oxysome
Correct Answer:
allosomes
Explanation:
No explanation available. Be the first to write the explanation for […]
Green muffler is used against which type of pollution?
Options
(a) air (b) soil (c) water (d) noise
Correct Answer:
noise
Explanation:
No explanation available. Be the first to write the explanation for […]
Somatic hybridization refers to
Options
(a) fusion of male gamete with the egg cell (b) fusion of male gamete with the polar nuclei (c) fusion of protoplasts (d) fusion of male gamete with […]
Organisms, which have cells but no distinct nucleus, are
Options
(a) fungi (b) cyanobacteria (c) bacteria (d) both cyanobacteria and bacteria
Correct Answer:
both cyanobacteria and bacteria
Explanation:
Prokaryotes are cells that […]
The Golgi complex or Golgi apparatus serves as the centre of
Options
(a) protein production (b) fats production (c) carbohydrate production (d) enzyme production
Correct Answer:
carbohydrate production
Explanation:
No explanation available. Be […]
Known sequences of DNA that is used to find complementary DNA strands is
Options
(a) vector (b) DNA probe (c) plasmid (d) recombinant DNA
Correct Answer:
DNA probe
Explanation:
No explanation available. Be […]
A threatened species category included
Options
(a) only endangered species (b) only vulnerable species (c) endangered and rare species (d) endangered, vulnerable and rare species
Correct Answer:
endangered, vulnerable and rare species
Explanation: […]
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