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 Biology Questions

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Q:

Mitochondrial DNA analysis is best suited for

A) analysis in which only a minute quantity of DNA material is available B) Forensic science analysis
C) analysis requiring greater discriminatory power than STR D) All of the above
 
Answer & Explanation Answer: B) Forensic science analysis

Explanation:

Mitochondrial DNA analysis is best suited for Forensic science analysis.

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Q:

Which of the following is a risk factor for osteoporosis?

A) Smoking cigarettes B) Drinking alcohol
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Osteoporosis makes you more likely to loss bone mass and density resulting in fractures. Smoking cigarettes and drinking alcohol can lead to loss bone mass and density. Oseoporosis is more common in women than men.

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Q:

The process of acquiring oxygen from outside the body and to use it in the process of breakdown of food sources for cellular needs is commonly called______.

A) respiration B) nutrition
C) digestion D) transportation
 
Answer & Explanation Answer: A) respiration

Explanation:
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Q:

Which is a function of a protein macromolecule?

A) Cushions the internal organs of an animal B) Provides the building instructions for living things
C) Makes up the connective tissue in tendons D) Makes the leaves of plants waterproof
 
Answer & Explanation Answer: C) Makes up the connective tissue in tendons

Explanation:

The function of a protein macromolecule is

- Moving things in and out of cells.

- Transporting other molecules in the body.

- Making up the connective tissue in tendons.

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Q:

Pollen is produced by the process of

A) Mitosis B) Pollination
C) Meiosis D) Fertilization
 
Answer & Explanation Answer: A) Mitosis

Explanation:

Pollen is a male plant gamete. When microspores produced after meiosis process on microsporangia of male gametophyte undergo mitosis and forms pollen grains.

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Q:

A ___________ is a long internode forming the basal part or the whole of a peduncle.

A) rhizome B) rachis
C) floral axis D) scape
 
Answer & Explanation Answer: D) scape

Explanation:
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Q:

The right portion of human heart receives ______ blood.

A) pure B) impure
C) mixed D) none
 
Answer & Explanation Answer: B) impure

Explanation:
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Q:

Lysergic acid diethylamide (LSD) is a drug used as a

A) Sedative B) Hallucinogen
C) Steroid D) Analgesic
 
Answer & Explanation Answer: B) Hallucinogen

Explanation:

Lysergic acid diethylamide (LSD) is a drug used as a Hallucinogen.

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