JAMB Biology Past Questions & Answers - Page 271

1,351.

The very bright colours in some types of mushroom

A.

warn that they may be poisonous

B.

indicate that they are very tasty

C.

attract potential transporters of the spores

D.

perform the same function as bright colours in flowers

Correct answer is A

No explanation has been provided for this answer.

1,352.

From evolutionary standpoint , the older a fossil-bearing rocks is, the more likely it is to contain

A.

aves as opposed to amphibians

B.

invertebrates as opposed to vertebrates

C.

angiosperms as opposed to algae

D.

vertebrates as opposed to invertebrates

Correct answer is B

No explanation has been provided for this answer.

1,353.

The biological factor that is unique to each individual is the

A.

DNA

B.

eye colour

C.

blood group

D.

RNA

Correct answer is A

No explanation has been provided for this answer.

1,354.

If the offspring of a cross between a brown mouse (bb) and a black mouse (BB) are allowed to interbreed, how many different genotypes would result?

A.

2

B.

3

C.

4

D.

5

Correct answer is B

Cross between bb and BB → Bb   Bb   Bb   Bb

Bb genotype fills the first filial generation

1,355.

Which of the following characterizes the white mangrove?

A.

Prop roots

B.

Buttress roots

C.

Breathing roots

D.

Stilt roots

Correct answer is C

No explanation has been provided for this answer.