Biology - Mock Test 340

Question 3391

When one gene pair hides the effect of the other unit. The phenomenon is referred to as?

A) mutation B) epistasis C) dominance D) None of these

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Question 3392

Cyanide poisoning causes death in seconds because?

A) it causes lysis of red blood cells B) it denatures enzymes of the heart/muscle C) it breaks the electron transport chain D) it causes cardiac arrest

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Question 3393

Xenobiotics which are inherently resistant to microbial attack are called as?

A) Persistent B) Recalcitrant C) Biodegradable D) All of these

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Question 3394

Molybdenum deficiency affects the activity of?

A) chlorate reductase B) nitrate reductase C) nitrogenase D) All of the given options

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Question 3395

Photoperiodism affects?

A) Vegetative growth B) Fruiting C) Flowering D) All of these

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Question 3396

Which one of the following animals belongs to mollusca?

A) Hare B) Haliotis C) Hydra D) Hyla

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Question 3397

Allantois of Embryo helps in?

A) excretion B) digestion C) respiration D) protection

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Question 3398

Outside the nucleus DNA is found in?

A) Golgi bodies B) Ribosome C) Endoplasmic reticulum D) Mitochondria

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Question 3399

Animal protein is called first class protein because it is ?

A) cheaper in the market B) easily digestible C) rich in essential amino acids D) delicious in taste

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Question 3400

The maximum fixation of solar energy is done by ?

A) green plants B) fungi C) bacteria D) protozoa

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