Chromosome duplication without nuclear division refers to
Options
(a) meiosis (b) mitosis (c) androgenesis (d) endomitosis
Correct Answer:
endomitosis
Explanation:
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When vegetative cells of zygote form embryo, it is called
Options
(a) diploid polyembryony (b) apomixis (c) apospory (d) adventive polyembryony
Correct Answer:
adventive polyembryony
Explanation:
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The phenomenon ‘ontogeny repeats phylogeny’ is explained by
Options
(a) recapitulation theory (b) inheritance theory (c) mutation theory (d) natural selection theory
Correct Answer:
recapitulation theory
Explanation:
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Which of these are most widely used in genetic engineering?
Options
(a) plastid (b) plasmid (c) mitochondria (d) ribosome
Correct Answer:
plasmid
Explanation:
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The plants which flower once in their lifetime are called as
Options
(a) polycarpic (b) cleistogamous (c) monocarpic (d) bicarpic
Correct Answer:
monocarpic
Explanation:
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Cardiac muscles are different from that of skeletal muscles as
Options
(a) they are smooth (b) they are voluntary (c) they are non-striated (d) they are striated and involuntary
Correct Answer:
they are […]
Heating food to 100° C will prevent all but following diseases
Options
(a) Salmonella infection (b) cholera (c) botulism (d) hepatitis B
Correct Answer:
hepatitis B
Explanation:
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In the development of a frog, the gastrulation process involves
Options
(a) epiboly (b) invagination (c) emboly (d) all of these
Correct Answer:
all of these
Explanation:
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Mechanism of ATP production in aerobic respiration was given by
Options
(a) Krebs (b) Calvin (c) Hatch and Slack (d) Pasteur
Correct Answer:
Krebs
Explanation:
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Which of the following is an example of sex-linked inheritance?
Options
(a) night blindness (b) anaemia (c) colour blindness (d) cretinism
Correct Answer:
colour blindness
Explanation:
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