NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 255 - 259 of 3513

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Question number: 255

» Human Physiology » Neural Control and Coordination » Endocrine System-Hypothalamus, Pituitary, Pineal, Thyroid, Parathyroid, Adrenal, Pancreas, Gonads

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MCQ▾

Question

Secretion of which of the following is under neurosecretory nerve axons?

Choices

Choice (4)Response

a.

Pineal

b.

Anterior pituitary

c.

Posterior pituitary

d.

Adrenal cortex

Question number: 256

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

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MCQ▾

Question

Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produced normal pollen tube because

Choices

Choice (4)Response

a.

Laser beam stimulates pollen germination and pollen tube growth.

b.

The contents of killed generative cell permit germination and pollen tube growth.

c.

The vegetative cell has not been damaged.

d.

The laser beam does not damage the region from which pollen tube emerges.

Question number: 257

» Human Physiology » Locomotion » Locomotion and Movement

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MCQ▾

Question

In mammals, the zygomatic arch is formed by

Choices

Choice (4)Response

a.

Maxilla, squamosal and jugal.

b.

Jugal, maxilla and periotic.

c.

Maxilla, premaxilla and squamosal

d.

Periotic, jugal and palatine.

Question number: 258

» Diversity in Living World » Five Kingdom Classification » Plant Group - Algae

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MCQ▾

Question

Sexual reproduction and mobile cells are absent in

Choices

Choice (4)Response

a.

phaeophyceae

b.

chlorophyceae

c.

myxophyceae

d.

fhodophyceae

Question number: 259

» Cell Structure and Function » B Cell Division » Cell Cycle

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MCQ▾

Question

G2 phase of mitosis takes

Choices

Choice (4)Response

a.

4 % time of cell cycle.

b.

50 % time of cell cycle.

c.

25 to 33 % time of cell cycle.

d.

12 to 16 % time of cell cycle.

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