Post Utme University of Nigeria Biology Past Questions and Answers

Question 11:

An onion is a bulb because it ____________

A. Has a tuberous stem
B. Has a reduced stem and thick fleshy leaves
C. Has adventitious roots
D. Bears many buds at the nodes

Question 12:

What do bacteria in root nodules derive from host plant?

A. Protection and minerals
B. Water and minerals
C. Carbohydrates and water
D. Protection and carbohydrates

Question 13:

Fruits which develop without fertilization of the ovule are ____________

A. False
B. Multiple
C. Aggregate
D. Parthenocarpic

Question 14:

A severe deficiency thyroxin results in ____________

A. Diabetes Mellitus
B. Sexual underdevelopment
C. Cretinism
D. Gigantism

Question 15:

A red-coloured flower when crossed with a white-coloured one produced pink flowers. This is an example of ____________

A. Complete dominance
B. Blending inheritance
C. Interaction of genes
D. Black crossing