Biology - Mock Test 20

Question 191

The number of spermatozoa a single primary spermatocyte finally produced in spermatogenesis is

A) 2 B) 4 C) 6 D) 8

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Question 192

The acrosome of sperm is formed from

A) Mitochondria of spermatid B) Golgi complex of spermatid C) Nucleus of spermatid D) Centrosome of spermatid

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Question 193

Which of the following cells is immortal

A) Glomerular cells B) Somatic cells C) Cells of pituitary D) Germ cells

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Question 194

In the rainy season, doors get swelled up due to

A) Transpiration B) Imbibition C) Diffusion D) Respiration

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Question 195

In C3 and C4 plants, primary carboxylation takes place with the help of

A) PEP carboxylase and pyruvate carboxylase B) RuBP carboxylase and PEP carboxylase C) PEP carboxylase and RuBP carboxylase D) RuBP carboxylase and pyruvate carboxylase

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Question 196

Peroxisomes are involved in which type reactions pertaining to plant photosynthesis

A) Calvin Cycle B) Glycolytic cycle C) Glyoxylate cycle D) Bacterial photosynthesis

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Question 197

Macromolecule chitin is

A) Phosphorous containing polysaccharide B) Nitrogen containing polysaccharide C) Sulphur containing polysaccharide D) Simple polysaccharide

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Question 198

This is a wrongly matched pair

A) Alcohol - Nitrogenase B) Detergents - Lipase C) Textile - Amylase D) Fruit juice - Pectinase

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Question 199

One of these traits is not seen in a person with Down syndrome

A) High muscle tone B) Small stature C) Upward slant eye D) Short neck

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Question 200

The number of chromosomes a child with Down syndrome has is

A) 45 B) 46 C) 47 D) 48

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