Exercise 1

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Embibe Experts Biology Solutions for Exercise 1

Simple step-by-step solutions to Exercise 1 questions of Sexual Reproduction in Flowering Plants from Biology Textbook of Competency Based Questions for Class XII. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise 1 with Hints & Solutions

HARD
12th CBSE
IMPORTANT

Assertion: In plants, apomixis is a type of asexual reproduction that mimics sexual reproduction.
Reason: In apomixis, seeds are produced without the fusion of gametes.

MEDIUM
12th CBSE
IMPORTANT

The gamete mother cell of rice have 24 chromosomes. How many chromosomes are present in its endosperm?

HARD
12th CBSE
IMPORTANT

If an endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in each cell of the root will be

MEDIUM
12th CBSE
IMPORTANT

Assertion: The endosperm of angiosperms is generally triploid.
Reason: In Angiosperms, endosperm develops from primary endosperm nucleus which in turn formed by fusion of haploid male gamete and diploid secondary nucleus.

MEDIUM
12th CBSE
IMPORTANT

Assertion: Dichogamy refers to maturation of male and female sex organs at different times.
Reason: This is a safeguard against cross-fertilization.

HARD
12th CBSE
IMPORTANT

Differentiate between wind pollinated and insect pollinated flowers.

MEDIUM
12th CBSE
IMPORTANT

Write one difference between the monocarpellary flower and multicarpellary flower.

MEDIUM
12th CBSE
IMPORTANT

You are given castor and bean seeds. Which one of the two would you select to observe the endosperm?