NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 2987 - 2991 of 3511

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Question number: 2987

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

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Appeared in Year: 2010

MCQ▾

Question

Wind pollinated flowers are: [AIPMT (Pre. ) ]

Choices

Choice (4)Response

a.

Small, brightly coloured, producing large number of pollen grains

b.

Small, producing large number of dry pollen grains

c.

Large producing abundant nectar and pollen

d.

Small, producing nectar and dry pollen

Question number: 2988

» Reproduction » Sexual Reproduction in Flowering Plants » Pollen-Pistil Interaction

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Appeared in Year: 2008

MCQ▾

Question

What does the filiform apparatus do at the entrance into ovule? [AIPMT]

Choices

Choice (4)Response

a.

It prevents entry of more than 1 pollen tube into the embryo sac

b.

It guides pollen tube from a synergid to egg

c.

It helps in the entry of pollen tube into a synergid

d.

It brings about opening of the pollen tube

Question number: 2989

» Reproduction » Sexual Reproduction in Flowering Plants » Special Modes-Apomixis, Parthenocarpy, Polyembryony

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Appeared in Year: 2010

MCQ▾

Question

Apomictic embryos in citrus arise from: [AIPMT (Pre. ) ]

Choices

Choice (4)Response

a.

Maternal sporophytic tissue in ovule

b.

Diploid egg,

c.

Synergids

d.

Antipodal cells

Question number: 2990

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Endosperm and Embryo

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Appeared in Year: 2006

MCQ▾

Question

What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids? [AIPMT]

Choices

Choice (4)Response

a.

32

b.

16

c.

24

d.

8

Question number: 2991

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Male and Female Gametophytes

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Appeared in Year: 2006

MCQ▾

Question

Embryosac represents: [RPMT]

Choices

Choice (4)Response

a.

Macrospore

b.

Macrosprophyll

c.

Macrogamete

d.

Macrogametophyte

Developed by: