Q:

Which best describes the structure of a DNA molecule?

A) A double helix	B) A strand of nucleic acids
C) A single strand of amino acids	D) A sugar ring

Answer & Explanation Answer: A) A double helix

Explanation:

DNA is not a single stranded and does not have amino acids. Hence options, b & C are eiminated. Dna is a double helix structure containing nucleobase—either cytosine (C), guanine (G), adenine (A), or thymine (T)—as well as a monosaccharide sugar called deoxyribose and a phosphate group.

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Q:

when an atom loses an electron it becomes

A) neutron	B) negative ion
C) positive ion	D) none of the above

Answer & Explanation Answer: C) positive ion

Explanation:

If it loses an electron it becomes a positive ion

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Q:

Rearrange the parts of the sentence in correct order.
It is for the government,
P-especially one with such a
Q-significant majority, to have the
R-intelligence and leadership to think long term

A) QRP	B) PQR
C) RPQ	D) QPR

Answer & Explanation Answer: B) PQR

Explanation:

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Filed Under: English
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Q:

Which is the following is not an effect of volcanoes

A) Africa	B) Australia
C) North America	D) South America

Answer & Explanation Answer: B) Australia

Explanation:

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Filed Under: World Geography

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Q:

What is keyword contextual targeting?

Answer

It is when themes of keywords are matched by AdWords to relevant content on various websites that run Google ads.

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Subject: Google Certification

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Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best
expresses the same sentence in Indirect/Direct speech.
Nasir asked his tutor, "Do I need to learn these formulas?"

A) Nasir asked his tutor if he has to learn those formulas.	B) Nasir asked his tutor if he had to learn those formulas.
C) Nasir asked his tutor didn't he had to learn those formulas.	D) Nasir asked his tutor hadn't he have to learn those formulas.

Answer & Explanation Answer: B) Nasir asked his tutor if he had to learn those formulas.

Explanation:

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Q:

Increasing the Alveolar ventilation rate will

A) Increase the rate of carbon dioxide diffusion from the blood to the alveoli	B) Decrease the partial pressure of oxygen in the alveoli
C) Increase the partial pressure of carbon dioxide in the alveoli	D) Have no effect on either partial pressure or diffusion rate of gases

Answer & Explanation Answer: A) Increase the rate of carbon dioxide diffusion from the blood to the alveoli

Explanation:

Increasing the Alveolar ventilation rate will increase the rate of carbon dioxide diffusion from the blood to the alveoli.

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Filed Under: Biology
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Q:

Which of the following statement(s) is/are CORRECT?

A) Oxides of non-metals are basic	B) Oxides of non-metals are acidic
C) Oxides of metals are acidic	D) All options are correct

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