NEETprep Bank NEET Botany Reproduction in Organisms Questions Solved


Plants like Elm (Ulmus), Dandelion (Taraxacum) and members of Rose Family vegetatively reproduce by

(1) Rhizome

(2) Sucker

(3) Stolon

(4) Corm

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The vegetative propagule of Bryophyllum is:

(1) Bulbil

(2) Leaf buds

(3) Rhizome

(4) Offset

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Water hyacinth is one of the most invasive weeds primarily because:

(1) It gets adapted to any fresh water body easily

(2) It produces secondary metabolites against herbivores

(3) It can propagate vegetatively at a phenomenal rate

(4) It is predated upon by a large number of organisms

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Isogametes are seen in:

(1) Cladophora

(2) Fucus

(3) Human beings

(4) Ficus

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When both male and female flowers are present on the same plant, then plant is said to be:

(1) Bisexual

(2) Monoecious

(3) Unisexual

(4) Dioecious

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The number of chromosomes in a meiocyte of the fruit fly is:

(1) 4

(2) 8

(3) 12

(4) 16

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The most critical event in sexual reproduction is:

(1) Gametogenesis

(2) Gamete transfer

(3) Fertilization

(4) Embryogenesis

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With respect to organisms exhibiting internal fertilization, organisms exhibiting external fertilization show:

(1) More variations

(2) Great synchrony between sexes

(3) Large female size than males

(4) Less vulnerability to predation

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Ginger is vegetatively propagated through:

(1) Rhizome

(2) Bulbil

(3) Stolon

(4) Offset

 

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In animals exhibiting internal fertilization:

(1) There is high synchrony between the two sexes

(2) The chances of desiccation of the embryo is high

(3) The male gamete is motile

(4) Vulnerability to predators is increased

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