Biology Questions

Q:

What base does guanine pair with?

A) Adenine B) Thymine
C) Uracil D) Cytosine
 
Answer & Explanation Answer: D) Cytosine

Explanation:

In DNA, the chemicals are Adenine, thymine, guanine and cytosine. They always pair as basepairs like Adenine with Thymine and Guanine with Cytosine.

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Q:

The size of the pupil is controlled by the

A) Retina B) Iris
C) Cornea D) Lens
 
Answer & Explanation Answer: B) Iris

Explanation:

The size of the pupil is controlled by the Iris when light enters the eye.

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Q:

Where would rna polymerase attach?

A) Phosphate groups B) DNA
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) DNA

Explanation:

RNA polymerase attach to DNA molecule.

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Q:

Which of these is a human disease caused by bacteria?

A) TB B) Ascariasis
C) Chickenpox D) Common cold
 
Answer & Explanation Answer: A) TB

Explanation:

Bacteria which causes disease are called Pathogenic Bacteria. TB is caused by bacteria.

 

Some of the diseases caused by bacteria are::

1. Tuberculosis, TB (affects the lungs)

2. Salmonella (causes food poisoning)

3. Whooping cough (affects the lungs)

4. Septic Sore Throat

 

 

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Q:

The fundamental excitable cell in the nervous system is the

A) Nephron B) Axon
C) Neuron D) Dendrite
 
Answer & Explanation Answer: C) Neuron

Explanation:
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Q:

Hypercalcemia can be caused by

A) malignancy B) hyper-parathyroidism
C) both A & B D) None of the above
 
Answer & Explanation Answer: C) both A & B

Explanation:

Hypercalcemia is a condition in which the calcium level in your blood is above normal. Too much calcium in your blood can weaken your bones, create kidney stones, and interfere with how your heart and brain work.

Hypercalcemia_can_be_caused_by1550553960.png image

Hypercalcemia is usually a result of overactive parathyroid glands.

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Q:

Where does meiosis take place in bryophytes?

A) Capsule B) Protonema
C) Antheridia D) None of the above
 
Answer & Explanation Answer: A) Capsule

Explanation:

Meiosis takes in the capsule of the Bryophytes.

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Q:

Localized area of pus formation in the lungs?

A) Pleural effusion B) Pulmonary abscess
C) Pleurisy D) Pulmonary edema
 
Answer & Explanation Answer: B) Pulmonary abscess

Explanation:

Localized area of pus formation in the lungs is called Pulmonary abscess.

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