Biology Questions

Q:

In a nucleosome, the DNA is wrapped around

A) histone octamer B) helix
C) double helix D) None of the above
 
Answer & Explanation Answer: A) histone octamer

Explanation:

In_a_nucleosome,_the_DNA_is_wrapped_around1542780589.jpg image

In a nucleosome, the DNA is wrapped around histone octamer.

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Q:

The disease Goitre is caused in persons who do not have in their diet sufficient

A) calcium B) sodium
C) iodine D) iron
 
Answer & Explanation Answer: C) iodine

Explanation:

Goitre is characterized by the swelling of the neck region. This is due to the enlargement of the thyroid gland which secretes hormone thyroxine. Thyroxine has iodine as an integral part of it. If there is not sufficient iodine in one's  diet, the thyroid gland swells up.

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Q:

What process never occurs in interphase?

Answer

Absence of cell division is the process that never comes in interphase.

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Q:

A gland below the bladder and surrounding the urethra?

A) Prostate B) Vas deferens
C) Seminal vesicle D) Bulbourethral
 
Answer & Explanation Answer: A) Prostate

Explanation:

The prostate gland is a walnut-sized structure that is located below the urinary bladder in front of the rectum. The prostate gland contributes additional fluid to the ejaculate. Prostate fluids also help to nourish the sperm. The urethra, which carries the ejaculate to be expelled during orgasm, runs through the center of the prostate gland.

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Q:

Food wrapped in news paper is likely to get contaminated by 

A) Magnesium B) Alluminium
C) Lead D) Copper
 
Answer & Explanation Answer: C) Lead

Explanation:

It gets contaminated by lead

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Q:

The book Historia plantrum is written by

A) Aristotle B) Theophrastus
C) Hipporates D) Darwin
 
Answer & Explanation Answer: B) Theophrastus

Explanation:
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Q:

Which of the following serve as antibodies?

A) Proteins B) Lipids
C) Carbohydrates D) Nucleic acids
 
Answer & Explanation Answer: A) Proteins

Explanation:
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Q:

Genes contain instructions for assembling what?

A) Amino acids B) Proteins
C) Nucleotides D) All of the above
 
Answer & Explanation Answer: B) Proteins

Explanation:

Genes which are segment of DNA of a cell contains instructions for assembling proteins.

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