(a) Anaphase II
(b) Telophase I
(c) Prophase I
(d) Metaphase I
142 Q) Which one of the following extra-embryonic membranes acts as a protective aquarium for the developing embryos?
(d) Yolk sac-
(a) Root hairs
(b) Stem hairs
(c) Leaf hairs
(d) Seed hairs
144 Q) Which one among the following produces the largest sperm in the plant kingdom?
145 Q) In humans, which one among the following, with reference to breathing, is correct?
(a) During inhalation, diaphragm relaxes
(b) During exhalation, thorax cavity expands
(c) During inhalation, intra-pleural pressure becomes more negative
(d) Unlike inhalation, normal exhalation is an active process
146 Q) "Consider the following statements
I. Down's syndrome is a genetic disease due to an extra 21st chromosome in man.
II. Down's syndrome leads to small chin, shorter limbs, oversized tongue in men.
Which of the statements given above is/are correct?"
(a) Only I
(b) Only II
(c) Both I and II
(d) Neither I and II
147 Q) "Consider the following vitamins
(1) Niacin (2) Pyridoxine (3) Riboflavin (4) Thiamine
Which of the above vitamins are water soluble?"
(a) 1 and 2
(b) 2 and 3
(c) 2, 3 and 4
(d) All of these
148 Q) Which of the following is not present in prokaryotes?
(b) Nuclear membrane
(c) Cell wall
(d) Plasma membrane
149 Q) "Which of the following is the correct sequence of the different phases of cell division?
(1) Anaphase (2) Telophase (3) Prophase (4) Metaphase
Select the correct answer using the codes given below"
(a)All of these
(b) 1, 3, 2, 4
(c) 3, 4, 1, 2
(d) 3, 1, 4, 2
150 Q) Which among the following endocrine glands is temporary lasts only for a limited period?
(a) Thyroid gland
(b) Adrenal gland
(d) Thymus gland
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