Biology questions and answers

Biology Questions and Answers

How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.

4,236.

The hepatic portal vein is characterized by

A.

 Beginning and ending with capillaries

B.

Connecting the liver and the kidney

C.

Carrying deoxygenated blood

D.

Ending with large capillaries

E.

Having no capillaries

Correct answer is A

No explanation has been provided for this answer.

4,237.

The digestive enzyme that coagulates proteins in milk is

A.

Ptyalin

B.

Pepsin

C.

Renin

D.

Trypsin

E.

Amylase

Correct answer is C

No explanation has been provided for this answer.

4,238.

If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be

A.

2:1

B.

1:2

C.

1:1

D.

1:3

E.

3:1

Correct answer is C

No explanation has been provided for this answer.

4,239.

One of the following statement is not true of viruses

A.

They are micro-organisms

B.

They are smaller than bacteria

C.

They can be seen with an ordinary light microscope

D.

They cause tobacco disease

E.

They cause polio and smallpox

Correct answer is C

No explanation has been provided for this answer.

4,240.

Bacteria inhabiting legume root nodules and which add atmospheric nitrogen to the soil are referred to as

A.

Denitrifying bacteria

B.

Nitrifying bacteria

C.

Nitrogen fixing bacteria

D.

Nitrogen freeing bacteria

E.

Nitrogen putrefying bacteria

Correct answer is C

No explanation has been provided for this answer.