Jamb Biology Past Questions and Answers

Question 1966:

• JAMB 2016

The crossing of individuals of the same species with different genetic characters is

A. Croos breeding
B. Polygenic inheritance
C. Non-disjunctin
D. Inbreeding

Question 1967:

• JAMB 2016

The hereditary characters in plants and animals are located on the

A. Gene
B. Mucleus
C. Chromosome
D. Cell

Question 1968:

• JAMB 2016

The arrangement of ovules attached to the sides of a syncarpous ovary with a single chamber is referred to as

A. Free-central placentation
B. Axile placentation
C. Parietal placentation
D. Marginal placentation

Question 1969:

• JAMB 2016

When sickle cell carrier marries a normal woman, the probability of them having a normal offspring is

A. 0.75
B. 0.25
C. 0.5
D. .1

Question 1970:

• JAMB 2016

In which of the following groups of vertebrates is parental care mostly exhibited?

A. Aves
B. Reptilia
C. Amphibia
D. Mammalia