Which one of the following kinds of animals are triploblastic?
Options
(a) Flat worms (b) Sponges (c) Ctenophores (d) Corals
Correct Answer:
Flat worms
Explanation:
Triploblastic condition can be seen in flat worms. […]
Which of the following has maximum genetic diversity in India?
Options
(a) Rice (b) Mango (c) Wheat (d) Groundnut
Correct Answer:
Rice
Explanation:
No explanation available. Be the first to write the explanation […]
Thorn of Bougainvillea and tendril of cucurbita are example of
Options
(a) analogous organ (b) homologous organs (c) vestigial organs (d) retrogressive evolution
Correct Answer:
homologous organs
Explanation:
No explanation available. Be the […]
Phototropic curvature is the result of uneven distribution of:
Options
(a) gibberellin (b) Phytochrome (c) cytokinins (d) auxin
Correct Answer:
auxin
Explanation:
Phototrophic curvature is the result of uneven distribution of auxin. The experiments […]
One of the important consequences of geographical isolation is
Options
(a) preventing speciation (b) speciation through reproductive isolation (c) random creation of new species (d) no change in the isolated fauna
Correct Answer: […]
A common biocontrol agent for the control of plant diseases is
Options
(a) Baculovirus (b) Bacillus thuringiensis (c) Glomus (d) Trichoderma
Correct Answer:
Trichoderma
Explanation:
A common biocontrol agent for control of plant diseases […]
Which one of the following structure between two adjacent cells is an effective transport pathway?
Options
(a) Plasmodesmata (b) Plastoquinones (c) Endoplasmic reticulum (d) Plasmalemma
Correct Answer:
Plasmodesmata
Explanation:
Plasmodesmata are the structure […]
Semi-conservative replication of DNA was first demonstrated in:
Options
(a) Escherichia coli (b) Streoticiccys obeynibuease (c) Salmonella typhimurium (d) `Drosphila melanogaster
Correct Answer:
Escherichia coli
Explanation:
Semi conservative replication of DNA was first […]
Of the total incident solar radiation the proportion of PAR is:
Options
(a) about 70% (b) about 60% (c) less than 50% (d) more than 80%
Correct Answer:
less than 50%
Explanation:
Out of […]
Nitrogen fixation in root nodules of Alnus is brought about by:
Options
(a) Bradyrhizobium (b) Clostridium (c) Frankia (d) Azorhizobium
Correct Answer:
Frankia
Explanation:
The most common symbiotic association of legume and bacteria […]
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