JAMB Biology Past Questions & Answers - Page 346

1,726.

A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitates is formed which on gentle heating turns red. The food substance is

A.

Protein

B.

Oil

C.

Carbohydrates

D.

Fat

E.

Fatty acid

Correct answer is A

No explanation has been provided for this answer.

1,727.

A dwarf plant can be stimulated to grow to normal height by the application of

A.

thyroxin

B.

gibberellin

C.

insulin

D.

kinin

Correct answer is B

No explanation has been provided for this answer.

1,728.

The character-producing factors in living organisms are

A.

Chromomeres

B.

Alleles

C.

Chromatids

D.

Chromosomes

E.

Genes

Correct answer is E

No explanation has been provided for this answer.

1,729.

Epigeal germination can be found in

A.

sorghum

B.

maize

C.

millet

D.

groundnut

Correct answer is D

No explanation has been provided for this answer.

1,730.

Which of the following cell constituents is NOT common in both plants and animals?

A.

Mitochondria

B.

Chloroplast

C.

Ribosomes

D.

Golgi apparatus

E.

Vacuoles

Correct answer is B

No explanation has been provided for this answer.