31. Which of the following pairs is of unicellular algae?
(1) Gelidium and Gracilaria
(2) Anabaena and Volvox
(3)
Chlorella and Spirulina
(4) Laminaria and Sargassum
32.
Which one of the following is the most abundant protein in the animals?
(1)
Collagen
(2) Lectin
(3) Insulin
(4) Haemoglobin
33.
Match the following with respect to meiosis
(a) Zygotene (i) Terminalization
(b) Pachytene (ii) Chiasmata
(c) Diplotene (iii) Crossing over
(d) Diakinesis (iv) Synapsis
Select the correct option from the following
(a) (b)
(c) (d)
(1) (iv) (iii) (ii) (i)
(2) (i) (ii) (iv) (iii)
(3) (ii) (iv) (iii) (i)
(4) (iii) (iv) (i) (ii)
34. How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
(1) 2
(2) 14
(3) 8
(4) 4
35.
Cuboidal epithelium with brush border of microvilli is found in
(1) Ducts of salivary glands
(2)
Proximal convoluted tubule of nephron
(3) Eustachian tube
(4) Lining of intestine
36.
Match the following with respect to meiosis
(a) Zygotene (i) Terminalization
(b) Pachytene (ii) Chiasmata
(c) Diplotene (iii) Crossing over
(d) Diakinesis (iv) Synapsis
Select the correct option from the following
(a) (b)
(c) (d)
(1) (iv) (iii) (ii) (i)
(2) (i) (ii) (iv) (iii)
(3) (ii) (iv) (iii) (i)
(4) (iii) (iv) (i) (ii)
37.
Which of the following statements about inclusion bodies in incorrect?
(1)
These are involved in ingestion of food particles
(2) They lie free in the cytoplasm
(3) These represent reserve material in cytoplasm
(4) They are not bound by any membrane
38. Which of the following would help in prevention of diuresis?
(1)
Reabsorption of Na+ and water from renal tubules due to aldosterone
(2) Atrial natriuretic factor causes vasoconstriction
(3) Decrease in secretion of renin by JG cells
(4) More water reabsorption due to undersecretion
of ADH
39.
The transverse section of a plant shows following anatomical features :
(a) Large number of scattered vascular bundles surrounded by bundle sheath
(b) Large conspicuous parenchymatous ground tissue
(c) Vascular bundles conjoint and closed
(d) Phloem parenchyma absent
Identify the category of plant and its part :
(1) Monocotyledonous root
(2) Dicotyledonous stem
(3) Dicotyledonous root
(4)
Monocotyledonous stem
40.
Which of the following statements is correct?
(1) Adenine pairs with thymine through one H bond
(2) Adenine pairs with thymine through three H-bonds
(3) Adenine does not pair with thymine
(4)
Adenine pairs with thymine through two H bonds
Answer:
31. (3) Chlorella and Spirulina
32. (1) Collagen
33. (1) (iv-a) (iii-b) (ii-c) (i-d)
34. (2) 14
35. (2) Proximal convoluted tubule of nephron
36. (1) (iv-a) (iii-b) (ii- c) (i-d)
37. (1) These are involved in ingestion of food particles
38. (1) Reabsorption of Na+ and water from renal tubules due to aldosterone
39. (4) Monocotyledonous stem
40. (4) Adenine pairs with thymine through two H bonds