AIIMS Biology: Questions 201 - 206 of 405

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Question number: 201

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

Appeared in Year: 2005

MCQ▾

Question

When vegetative cells of sporophyte form an embryo it is called [Uttaranchal PMT]

Choices

Choice (4) Response

a.

Apospory

b.

Apogamy

c.

Adventive embryony

d.

Apomixis

Question number: 202

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

Appeared in Year: 2005

MCQ▾

Question

When seed germinates, while the fruit is attached to parent plant, it is called [Uttaranchal PMT, C. G. 06]

Choices

Choice (4) Response

a.

Parthenocarpy

b.

Parthenogenesis

c.

Vivipary

d.

Apomixis

Question number: 203

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

Appeared in Year: 2003

MCQ▾

Question

Double fertilization was discovered by [MP PMT]

Choices

Choice (4) Response

a.

Robert Brown

b.

S. G. Nawaschin

c.

Strasburger

d.

Purkinje

Question number: 204

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

Appeared in Year: 2005

MCQ▾

Question

Pollinia are present in family [Uttaranchal PMT]

Choices

Choice (4) Response

a.

Cucurbitaceae

b.

Asclepiadaceae

c.

Malvaceae

d.

Brassicaceae

Question number: 205

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

Appeared in Year: 2004

MCQ▾

Question

The pollen tube usually enters the embryosac:

Choices

Choice (4) Response

a.

By directly penetrating the egg

b.

Between 1 synergid and central cell

c.

By knocking off the antipodal cells

d.

Through one of the synergids

Question number: 206

» Genetics and Evolution » Molecular Basis of Inheritance » Genetic Code

Appeared in Year: 1985

MCQ▾

Question

The function of non-sense codons is

Choices

Choice (4) Response

a.

To release polypeptide chain from t-RNA

b.

To terminate the message of a gene controlled protein synthesis

c.

To convert a sense DNA into non sense DNA

d.

To form an unspecified amino acid

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