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ASPIRE NEET 2020 :Reproduction in Flowering Plants-01

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Question 1

Which is not the advantage of parthenogenesis?

Question 2

At which stage, one can distinguish between nuclear and cellular type of endosperm?

Question 3

Which of the following is not true for double fertilization?

Question 4

Which of the following is considered as a belated gametophytic tissue?

Question 5

Turions develop in

Question 6

What would be chromosome number of cells in aleurone layer if megaspore mother cell has 20 chromosomes?

Question 7

An anther having four microsporocytes shall produce pollen grains

Question 8

In young anther, four rows of cells destined to form pollen are collectively called

Question 9

Wheat root cells have 42 chromosomes. The number of chromosomes in a cell of pollen grain is

Question 10

Embryo sac is

Question 11

Polygonum type of embryo sac is

Question 12

Tapetum occurs in

Question 13

In anther, meiosis produces

Question 14

Function of guiding and attracting pollen tube is done by

Question 15

Plant part having two generations, one within the other is

Question 16

In angiosperm ovule, central cell of embryo sac, prior to entry of pollen tube, contains

Question 17

To produce hundred microspores in family Cyperaceae, how many microspore mother cells are required?

Question 18

If diploid chromosome number in a flowering plant is 12, then which one of the following will have only 6 chromosomes?

Question 19

Genotypically the pollen grains produced by an anther belong to

Question 20

Which of the following pair has haploid structure

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