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KVPY Exam Pattern, KVPY Questions with Answers Page 4

(#M40027301) KVPY QUESTION Mental Ability-2010 Keep an EYE

Suppose a, b are real numbers such that ab ≠ 0. Which of the following four figures represents the curve
(y – ax – b)(bx^2 + ay^2 – ab) = 0

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(#M40027300) KVPY QUESTION Mental Ability-2010 Keep an EYE

Let r be a real number and n ∈ N be such that the polynomial 2x^2 + 2x + 1 divides the polynomial (x + 1)^n – r.
Then (n, r) can be-

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(#M40027299) KVPY QUESTION Mental Ability-2010 Keep an EYE

Arrange the expansion of
n
1/ 4
1/ 2
2x
1 x 



 + in decreasing powers of x. Suppose the coefficient of the first
three terms form an arithmetic progression. Then the number of terms in the expansion having integer
powers of x is-
(A) 1 (B) 2 (C) 3 (D) more than 3

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(#M40027298) KVPY QUESTION Mental Ability-2010 Keep an EYE

Estimate the order of the speed of propagation of an action potential or nerve impulse -
(A) nm/s (B) micron/s (C) cm/s (D) m/s

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(#M40027297) KVPY QUESTION Mental Ability-2010 Keep an EYE

The distance between two consecutive DNA base pairs is 0.34 nm. If the length of a chromosome is 1 mm,
the number of base pairs in the chromosome is approximately-
(A) 3 million (B) 30 million (C) 1.5 million (D) 6 million

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(#M40027296) KVPY QUESTION Mental Ability-2010 Keep an EYE

The fluid part of blood flows in and out of capillaries in tissue to exchange nutrients and waste materials.
Under which of the following conditions will fluid flow out from the capillaries into the surrounding tissue ?
(A) When arterial blood pressure exceeds blood osmotic pressure
(B) When arterial blood pressure is less than blood osmotic pressure
(C) When arterial blood pressure is equal to blood osmotic pressure
(D) Arterial blood pressure and blood osmotic pressure have nothing to do with the outflow of fluid from
capilleries

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(#M40027295) KVPY QUESTION Mental Ability-2010 Keep an EYE

Restriction endonucleases are enzymes that cleave DNA molecules into smaller fragments. Which type of
bond do they act on ?
(A) N-glycosidic Bond (B) Hydrogen bond
(C) Phosphodiester bond (D) Disulfide bond

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(#M40027294) KVPY QUESTION Mental Ability-2010 Keep an EYE

If you dip a sack full of paddy seeds in water overnight and then keep it out for a couple of days, it feels
warm. What generates this heat ?
(A) Imbibation
(B) Exothermic reaction between water and seed coats
(C) Friction among seeds due to swelling
(D) Respiration

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(#M40027293) KVPY QUESTION Mental Ability-2010 Keep an EYE

Conversion of the Bt protoxin produced by Bacillus thuringiensis to its active form in the gut of the insects is
mediated by-
(A) acidic pH of the gut (B) alkaline pH of the gut
(C) lipid modification of the protein (D) cleavage by chymotrypsin

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(#M40027292) KVPY QUESTION Mental Ability-2010 Keep an EYE

Of the following combinations of cell biological processes which one is associated with embryogenesis ?
(A) Mitosis and Meiosis (B) Mitosis and Differentiation
(C) Meiosis and Differentiation (D) Differentiation and Reprogramming

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