Q:

The term biodiversity refers to

A) Range of genetic variation within a population	B) Total number of different species within a habitat
C) Both A & B	D) None of the above

Answer & Explanation Answer: C) Both A & B

Explanation:

The term biodiversity refers to the variety of life on Earth at all its levels, from genes to ecosystems, and the ecological and evolutionary processes that sustain it.

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Q:

Rovers Cup is associated with

A) Tennis	B) Football
C) Cricket	D) Hockey

Answer & Explanation Answer: B) Football

Explanation:

Rovers Cup is associated with the sport football in India.

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4 9326

Q:

What is the location of India's first elevated Urban Expressway?

A) Mumbai to Pune	B) Delhi to Gurugram
C) Chennai to Bengaluru	D) Lucknow to Allahabad

Answer & Explanation Answer: B) Delhi to Gurugram

Explanation:

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Q:

A universal recipient belongs to the blood group

A) AB	B) O
C) B	D) A

Answer & Explanation Answer: A) AB

Explanation:

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44 9304

Q:

A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :

A) 518 nm	B) 1035 nm
C) 325 nm	D) 743 nm

Answer & Explanation Answer: D) 743 nm

Explanation:

$\frac{1}{λ} = \frac{1}{λ 1} + \frac{1}{λ 2}$

$\frac{1}{355} = \frac{1}{680} + \frac{1}{λ 2}$

$\frac{1}{λ 2} = \frac{680 - 355}{680 \times 355}$

$\Rightarrow λ 2 = 743 n m$ .

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Q:

Who succeeded Ghulam Nabi Azad as the Leader of Opposition in Rajya Sabha?

A) Anand Sharma	B) Jairam Ramesh
C) Mallikarjun Kharge	D) A K Antony

Answer & Explanation Answer: C) Mallikarjun Kharge

Explanation:

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Q:

Mr.Meera Sahib Fathima Beevi is distinguished as the first lady

A) Judge of the High Court	B) Governor of a State
C) Judge of the Supreme Court	D) Gold medal winner in Sports

Answer & Explanation Answer: C) Judge of the Supreme Court

Explanation:

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18 9295

Q:

What holds the sides of the DNA ladder together?

A) Polar covalent bonds	B) Ionic bonds
C) Metallic bonds	D) Covalent bonds

Answer & Explanation Answer: D) Covalent bonds

Explanation:

Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.

DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.

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