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Reyana09
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Answer to: Draw a labelled diagram of female reproductive system.

figure.png Fig: Female reproductive system

4 years ago
Forum
Human Reproduction
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Answer to: Draw a labelled diagram of male reproductive system.

figure.png Fig: The male reproductive system

4 years ago
Forum
Human Reproduction
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Answer to: Humans reproduce___(asexually/ sexually). 2. Humans are ___(oviparous/ viviparous/ ovoviviparous). 3. Fertilisation is___in humans

1. sexually; 2. viviparous; 3. internal; 4. haploid; 5. diploid; 6. ovulation; 7. LH; 8. fertilisation; 9. ampullary-isthmic j...

4 years ago
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Human Reproduction
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Answer to: The total number of nuclei involved in double fertilisation in angiosperm are

Correct answer: (d) five

4 years ago
Forum
Sexual Reproduction in Flowering Plants
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Answer to: Fusion of one of the male gametes with egg nucleus is referred to as

Correct answer: (d) both (a) and (b)

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: During the process of fertilisation the pollen tube of the pollen grain usually enters the embryo sac through

Correct answer: (d) micropyle

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: Growth of pollen tube towards embryo sac is

Correct answer: (a) chemotropic

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: Part of the gynoecium which receives the pollen is called (a) style (b) stigma (c) ovule (d) ovary

Correct answer: (b) stigma

4 years ago
Forum
Sexual Reproduction in Flowering Plants
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Answer to: The part of gynoecium that determines the compatible nature of pollen is (a) stigma (b) style (c) ovary (d) synergids

Correct answer: (a) stigma

4 years ago
Forum
Sexual Reproduction in Flowering Plants
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Answer to: Heterostyly as a contrivance for cross-pollination is found in

Correct answer: (c) Primula vulgaris

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: Which of these is a condition that makes flowers invariably autogamous?

Correct answer: (c) Cleistogamy

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: Pollen kitt is generally found in (a) anemophilous flowers (b) entomophilous flowers

Correct answer: (b) entomophilous flowers

4 years ago
Forum
Sexual Reproduction in Flowering Plants
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Answer to: Fragrant flowers with well developed nectaries are an adaptation for

Correct answer: (c) entomophily

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: When micropyle, chalaza and hilum lie in a straight line, the ovule is said to be

Correct answer: (b) orthotropous

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: Mature ovules are classified on the basis of funiculus. If micropyle comes to lie close to the funiculus the ovule is termed as

Correct answer: (b) anatropous

4 years ago
Forum
Sexual Reproduction in Flowering Plants
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Answer to: Megasporangium along with its protective integuments is called

Correct answer: (b) ovule

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: The three cells found in a pollen grain when it is shed at 3-celled stage are

Correct answer: (b) 1 vegetative cell, 2 male gametes

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: _______of the pollen grain divides to form two male gametes.

Correct answer: (b) Generative cell

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: What is the function of germ pore?

Correct answer: (c) Initiation of pollen tube

4 years ago
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Sexual Reproduction in Flowering Plants
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Answer to: One of the most resistant biological material present in the exine of pollen grain is

Correct answer: (b) sporopollenin

4 years ago
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Sexual Reproduction in Flowering Plants
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