1994 - JAMB Biology Past Questions and Answers - page 5

In the gene locus for eye colour in humans, the allele for brown eye is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of there parents'eye colour (Eye colour is not a sex linked trait)

If a woman's genotype is Tt Qq Rr, what would be the gene content of her eggs?

The sex-linked defect in which very slight cut produces severe bleeding is known as

A man who has the trait for colour blindness marries a normal woman. What percentage of their children would be sufferers, carriers and normal respectively

Breathing root is an adaptation for survival in the

Red coloration on the head of a male lizard helps it to

A phenomenon by which an animal goes into a state of dormancy during the dry season is called

The anatomical evidence usually used in support of the evolutionary relationship among whales, human, birds, and dogs is the possession of

The parts used for feeding is labelled

The mouth part of the insect is adapted for