NECO Biology Past Questions & Answers - Page 10

46.

What will the phenotypic ratio when a tall pea plant (TT) is crossed with a short pea plant (Tt)?

A.

0:04

B.

1:03

C.

2:02

D.

3:01

E.

4:00

Correct answer is E

The phenotypic ratio will be two homozygous tall and two heterozygous tall...

That implies that all four offsprings will come out tall.

47.

Loamy soil - is used for crop production because of its

A.

high humus content

B.

high percentage of clay

C.

high porosity

D.

low gravel content

E.

low humus content

Correct answer is A

No explanation has been provided for this answer.

48.

Which of these is a courtship behavior in toad?

A.

Display of body parts

B.

Display of color

C.

Pairing

D.

Production of scent

E.

Territoriality

Correct answer is C

No explanation has been provided for this answer.

49.

The following practices are adopted in the conservation of tropical rain forest EXCEPT

A.

afforestation

B.

creation of game reserve

C.

creation of forest reserve

D.

re-afforestation

E.

deforestation

Correct answer is E

No explanation has been provided for this answer.

50.

The function of ribosome is

A.

excretion of waste

B.

protein synthesis

C.

reproduction

D.

respiration

E.

secretion of hormones

Correct answer is B

No explanation has been provided for this answer.