NEET Biology: Questions 2973 - 2978 of 3146

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Question number: 2973

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

Appeared in Year: 2008

MCQ▾

Question

Which one of the following pairs of plant structures has haploid number of chromosomes? [AIPMT]

Choices

Choice (4) Response
a.

Egg nucleus and secondary nucleus

b.

Megaspore mother cell and antipodal cells

c.

Egg cell and antipodal cells

d.

Nucellus and antipodal cells

Question number: 2974

» Reproduction » Sexual Reproduction in Flowering Plants » Outbreeding Devices

Appeared in Year: 2008

MCQ▾

Question

Which one of the following is resistant to enzyme action? [AIPMT]

Choices

Choice (4) Response
a.

Cork

b.

Leaf cuticle

c.

Wood fiber

d.

Pollen exine

Question number: 2975

» Plant Physiology » Plant Growth and Development » Seed Dormancy

Appeared in Year: 2006

MCQ▾

Question

Treatment of seed at low temperature under moist conditions to break its dormancy is called [AIPMT]

Choices

Choice (4) Response
a.

Vernalization

b.

Stratification

c.

Scarification

d.

Chelation

Question number: 2976

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

Appeared in Year: 2006

MCQ▾

Question

The arrangement of the nuclei in a normal embryosac in the dicot plants is

[AIPMT]

Choices

Choice (4) Response
a.

2 + 4 + 2

b.

3 + 2 + 3

c.

3 + 3 + 2

d.

2 + 3 + 3

Question number: 2977

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

Appeared in Year: 2010

MCQ▾

Question

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called: [AIPMT (Pre. ) ]

Choices

Choice (4) Response
a.

Karyogamy

b.

Xenogamy

c.

Autogamy

d.

Geitonogamy

Question number: 2978

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

Appeared in Year: 2008

MCQ▾

Question

Unisexuality of flowers prevents: - [AIPMT]

Choices

Choice (4) Response
a.

Autogamy and geitonogamy

b.

Autogamy, but not geitonogamy

c.

Geitonogamy, but not xenogamy

d. All of the above

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