Biology Questions

Q:

Which enzyme has been used by scientists of Massachusetts Institute of Technology to induce plants to give off dim light?

 

A) Carotenogen B) Luciferase
C) Reductase D) Peroxidase
 
Answer & Explanation Answer: B) Luciferase

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Q:

Asexual reproduction differs from sexual reproduction in that in asexual reproduction, ______

A) the new organisms are genetically identical to the parent B) the gametes are produced in reproduction
C) the nuclei of gametes fuse D) the offspring shows variations
 
Answer & Explanation Answer: A) the new organisms are genetically identical to the parent

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Q:

______ is a strong drug that doctors give to people to make them calm or help them sleep.

A) Barbiturate B) Antidepressant
C) Antihistamine D) Beta-Blocker
 
Answer & Explanation Answer: A) Barbiturate

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Q:

A pair of contrasting characters controlling the same trait is called

A) factors B) loci
C) allele D) lineage
 
Answer & Explanation Answer: C) allele

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Q:

Which of the following is a vertebrate?

A) Kiwi B) Sponges
C) Star fish D) Threadworm
 
Answer & Explanation Answer: A) Kiwi

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Q:

____ tissue changes the diameter of a blood vessel.

A) Heart B) Muscle
C) Epithelial D) Bone
 
Answer & Explanation Answer: B) Muscle

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Q:

The embryo gets nutrition from the mother's blood with the help of a special tissue called

A) Uterus B) Placenta
C) Cervix D) Fallopian tube
 
Answer & Explanation Answer: B) Placenta

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Q:

Involuntary actions in human beings such as blood pressure, salivation and vomiting are controlled by the

A) Spinal cord B) Hypothalamus
C) Pons D) Medulla
 
Answer & Explanation Answer: D) Medulla

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