NECO Past Questions and Answers - Page 280

1,396.

Which of these is NOT part of a seed?

A.

Cotyledon

B.

Embryo

C.

Endosperm

D.

Pericarp

E.

Testa

Correct answer is D

Pericarp: the part of a fruit formed from the wall of the ripened ovary.

1,397.

The topmost layer of a typical soil profile is

A.

clay

B.

coarse sand

C.

fine sand

D.

gravel

E.

humus

Correct answer is E

No explanation has been provided for this answer.

1,398.

A dehiscent fruit formed from several fused carpels with man seeds is classified as a/an

A.

achene

B.

capsule

C.

caryopsis

D.

follicle

E.

legume

Correct answer is B

No explanation has been provided for this answer.

1,399.

Liver destroys old red blood cells to produce digestive substance called

A.

amalyse

B.

bile

C.

insulin

D.

lipase

E.

rennin

Correct answer is B

No explanation has been provided for this answer.

1,400.

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.