(a) Brachymeiosis
(b) Dinomitosis
(c) Dimunition
(d) Karyokinesis
112 Q) The unit structure of genes is made up of
(a) RNA
(b) DNA
(c) endoplasmic reticulum
(d) magnesium
I. Cortical granules originate from Golgi bodies.
II. Cortical granules form the fertilization membrane.
III. Cortical granules are found only in ovum
Which of the statements given above is/are correct?"
(a) All of these
(b) I and III
(c) II and III
(d) Only II
114 Q) "Consider the following methods
I. X-rays II. Delayed pollination III. Chemical agents
Which of the methods given above is/ are used to obtained ‘homozygous types’ in plants?"
(a) All of these
(b) I and III
(c) II and III
(d) Only III
115 Q) The improper function of which of the following results in the condition 'Myxedema' in human beings?
(a) Adrenal gland
(b) Pancreas
(c) Thyroid gland
(d) Liver
116 Q) "Select the correct answer
I. The first mammals arose in the triassic period.
II. The first mammals were oviparous in nature.
Which of the statements given above is/are correct?"
(a) Only I
(b) Only II
(c) Both I and II
(d) Neither I nor II
117 Q) The cuckoo birds never build their own nests but the female lays eggs in the nest built by other smaller birds. The relationship is
(a) proto-corporation
(b) symbiosis
(c) social parasitism
(d) parasitism
118 Q) The release of pancreatic juice from the pancreas in a mammal is stimulated by
(a) insulin hormone
(b) secretin hormone
(c) trysin hormone
(d) thyroxine hormone
119 Q) Otolith found in the inner ear of man is chemically
(a) magnesium carbonate
(b) calcium carbonate
(c) calcium bicarbonate
(d) silicon oxides
120 Q) The main thinking part of the brain is
(a) midbrain
(b) hypothalamus
(c) forebrain
(d) hindbrain
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