Q:

What are the sides of the dna ladder made of

A) nitrates and sugars	B) sugars and hydrates
C) sugars and phosphates	D) phosphates and nitrates

Answer & Explanation Answer: C) sugars and phosphates

Explanation:

DNA is a double-stranded molecule twisted into a helix. The shape of DNA is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA. The rungs of the ladder are pairs of 4 types of nitrogen bases.

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Q:

The protoplasm of a child is exactly the same as that of its

A) mother	B) father
C) grandfather	D) identical twin

Answer & Explanation Answer: D) identical twin

Explanation:

Though all living organisms are made of protoplasm each individual has a different composition however slight it be. In identical twins the same cell divides into two and each one develops into one person. So the genitic make-up and type of protoplasm are exactly the same.

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Filed Under: Biology

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Q:

Solve the following equations and find the value of abc?

A) 3	B) 6
C) 9	D) 12

Answer & Explanation Answer: B) 6

Explanation:

From the given equations,

$(a + b + c)^{2} = a^{2} + b^{2} + c^{2} + 2 (ab + bc + ca)$
${(6)}^{2} = 14 + 2 (ab + bc + ca)$
36 - 14 = 2(ab + bc + ca)
22/2 = ab + bc + ca
ab + bc + ca = 11

$a^{3} + b^{3} + c^{3} - 3 abc = (a + b + c) (a^{2} + b^{2} + c^{2} - ab - bc - ca)$
= (6) (14 - 11)
=(6)(3)
=18

Since, $a^{3} + b^{3} + c^{3} - 3 abc = 18$

36 - 3abc = 18

-3abc = 18 - 36

-3abc = -18

abc = 6.

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Q:

Primary growth in plants occurs by

A. Vertical meristem

B. Lateral meristem

C. Intercalary meristem

D. Apical meristem

A) C & D	B) A, B & D
C) A, B, C & D	D) B, C & D

Answer & Explanation Answer: A) C & D

Explanation:

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Q:

The element common to all acids is

A) Hydrogen	B) Oxygen
C) carbon	D) Sulphur

Answer & Explanation Answer: A) Hydrogen

Explanation:

Hydrogen is the common element in all acids.

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Q:

Narmada originates from its source situated in the state of

A) Maharashtra	B) Uttar Pradesh
C) Madhya Pradesh	D) Andhra Pradesh

Answer & Explanation Answer: C) Madhya Pradesh

Explanation:

Narmada rises near Amarkantak

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Q:

_______has conferred the 'Best Performance Award' for 2015-16 and 2016-17 to Karnataka VIKAS GRAMEEN Bank (KVGB) for its work in the field of credit-linking joint liability groups (JLGs).

A) RBI	B) RRB
C) NABARD	D) SBI

Answer & Explanation Answer: C) NABARD

Explanation:

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Q:

' Mohs scale ' is used to indicate the

A) degree of brittleness of a substance	B) degree of hardness of mineral
C) degree of viscosity of a liquid	D) degree of elasticity of a material

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