Quiz

Question bank: Unit 3 — Variation of Traits in Living Organisms

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Which is an inherited disease?

Thalassaemia

Influenza

Common cold

Food poisoning

Marriage between close relatives increases the chance of inherited disease because:

they have different genes

they are likely to carry the same disease allele from common ancestors

they cannot have children

the disease allele becomes dominant

The purpose of comprehensive genetic screening is:

treating damaged genes immediately

early detection of genetic disorders

changing undesirable traits

producing new genes