Which one of the following is not used for ex-situ plant conservation?
Options
(a) Seed backs (b) Shifting cultivation (c) Botanical Gardens (d) Field gene banks
Correct Answer:
Shifting cultivation
Explanation:
Shifting of Jhum […]
Which mendelian idea is depicted by a cross in which the F₁ generation resembles both the parents?
Options
(a) Law of dominance (b) Inheritance of one gene (c) Co-dominance (d) Incomplete dominance
Correct […]
Which of the following Bt crops is being grown in India by the farmers?
Options
(a) Cotton (b) Brinjal (c) Soyabean (d) Maize
Correct Answer:
Cotton
Explanation:
No explanation available. Be the first […]
The complex formed by a pair of synapsed homologous chromosomes is called
Options
(a) Kinetochore (b) Bivalent (c) Axoneme (d) Equatorial plate
Correct Answer:
Bivalent
Explanation:
During zygotene, second stage of meiosis I homologous […]
Which of the following criteria does not pertain to fecilitated transport?
Options
(a) High selectively (b) Transport saturation (c) Uphill transport (d) Requirement of special membrane proteins
Correct Answer:
Uphill transport
Explanation:
Substances […]
Variation in gene frequencies within populations can occur by chance rather than by natural section. The is referred to as
Options
(a) Genetic drift (b) Random mating (c) Genetic load (d) Genetic flow
Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?
Options
(a) Fructose 1,6 – bisphosphate (b) Pyruvic acid (c) Acetyl CoA (d) Glucose – 6 – phosphate
Correct […]
What external changes are visible after the last moult of a cockroach nymph?
Options
(a) Anal cerci develop (b) Both fore wings and hind wings develop (c) Labium develops (d) Mandibles become harder
Besides paddy fields cyanobacteria are also found inside vegetative part of :
Options
(a) Cycas (b) Equisetum (c) Psilotum (d) Pinus
Correct Answer:
Cycas
Explanation:
In Cycas specialised root called coralloid roots are […]
Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?
Options
(a) Plant cells-Cellulase (b) Algae-Methylase (c) Fungi-Chitinase (d) Bacteria-Lysozyme
Correct Answer:
Algae-Methylase
Explanation:
Algae is a […]
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