Quiz 7- Biology-General Studies: General Knowledge Question & Answers

61 Q) "Assertion (A) The pyramid of numbers is always upright. 
Reason (R) The pyramid of numbers does not show the true picture of energy flow of the ecosystem."

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

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D

62 Q) The acidic character of DNA and RNA are due to

(a) purine bases
(b) pyrimidine bases
(c) sugar fragments
(d) phospheric group

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D

63 Q) "Consider the following actions 
I.Weeping 
II. Sneezing 
 III. Coughing 
IV. Yawning 
Which of the actions given above are reflex actions?"

(a) I, II, III and IV
(b) I, II and III
(c) II, III and IV
(d) II and IV

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C

64 Q) "Consider the following statements 
I. Lymph transports oxygen to brain. 
II. Lymph returns the intestinal fluid to the blood. 
III. Lymph is modified blood that contains all except RBCs and certain proteins. 
Which of the statements given above is/are correct?"

(a) All of these
(b) I, and II
(c) II and III
(d) Only II

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C

65 Q) " Assertion (A) Root nodules in leguminous plants are inhabited by anabaena. 
Reason (R) Leguminous plants are an example of symbiotic nitrogen fixation."

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

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D

                       
66 Q) Which one among the given hormones is jocularly termed as a "jack-of-all-trade"?

(a) Prolactin
(b) Renin
(c) Thyroxine
(d) Parathormone

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A

67 Q) Which of the vitamins is essential for the red blood cell formation?

(a) Thiamine
(b) Folic acid
(c) Riboflavin
(d) Niacin

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B

68 Q) "DNA is mainly found in the following organelles 
 I. Mitochondria
II. Chloroplasts 
III. Peroxisomes 
IV. Nucleus 
Which of the statements given above is/are correct?"

(a)All of these
(b) I, II and IV
(c) II, III and IV
(d) II and IV

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B

69 Q) Which one among the following has haustoria or sucking roots?

(a) Orchids
(b) Mango
(c) Chestnut
(d) Cuscuta

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D

70 Q) Interferon suppresses the pathogenic activity of

(a) bacteria
(b) fungus
(c) virus
(d) protozoa

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C

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