Which of the following flowers only once in its life-time?
Options
(a) Papaya (b) Mango (c) Jackfruit (d) Bamboo species
Correct Answer:
Bamboo species
Explanation:
Bamboo species are monocarpic i.e., flower generally only […]
Which of the following features is used to identify a male cockroach from a female cockroach?
Options
(a) Presence of anal cerci (b) Forewings with darker tegmina (c) Presence of caudal styles (d) […]
Which of the following events does not occur in rough endoplasmic reticulum?
Options
(a) Phospholipid synthesis (b) Cleavage of signal peptide (c) Protein glycosylation (d) Protein folding
Correct Answer:
Phospholipid synthesis
Explanation:
Phospholipid […]
Which of the following elements is responsible for maintaining turgor in cells?
Options
(a) Calcium (b) Potassium (c) Sodium (d) Magnesium
Correct Answer:
Potassium
Explanation:
Potassium helps in maintaining turgidity of cells.
Which of the following characteristics represent ‘Inheritance of blood groups’ in humans?
Options
(a) Dominance,Co-dominance,Multiple allele. (b) Co-dominance,Incomplete dominance,Polygenic inheritance (c) Multiple allele,Polygenic inheritance,Dominance (d) Incomplete dominance,Co-dominance,Polygenic inheritance
Correct Answer:
Dominance,Co-dominance,Multiple allele.
Explanation: […]
Which of the following animals does not undergo metamorphosis?
Options
(a) Starfish (b) Moth (c) Tunicate (d) Earthworm
Correct Answer:
Earthworm
Explanation:
Metamorphosis refers to transformation of larva into adult.Animal that perform metamorphosis […]
What is the role of NAD+ in cellular respiration?
Options
(a) It is the final electron acceptor for anaerobic respiration. (b) It is a nucleotide source for ATP synthesis (c) It functions as […]
The two functional groups characteristic of sugars are
Options
(a) Carbonyl and hydroxyl (b) Carbonyl and phosphate (c) Carbonyl and methyl (d) Hydroxyl and methyl
Correct Answer:
Carbonyl and hydroxyl
Explanation:
Sugar is […]
The transparent lens in the human eye is held in its place by
Options
(a) smooth muscles attached to the ciliary body (b) smooth muscles attached to the iris (c) ligaments attached to […]
The stage during which separation of the paired homologous chromosomes begins is
Options
(a) Zygotene (b) Diakinesis (c) Diplotene (d) Pachytene
Correct Answer:
Diplotene
Explanation:
Synaptonemal complex disintegrates.Terminalisation begins at diplotene stage i.e […]
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