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Genetics Topical Questions and Answers

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Form 4 Biology Topical Questions and Answers on Genetics
Document Format: Pdf
Number of Questions: 50
Sample Questions:

FORM 4
BIOLOGY.
TOPIC 1: GENETICS
1. Write the types of gene mutation represented by the following analogues.
i.). Intended message BRING THERMOS ON OUTING
Actual message BRING MOTHERS ON OUTING
Inversion.
ii) Intended message PLEAS SAY WHERE YOU ARE
Actual message PLEASE STAY WHERE YOU ARE
Insertion
2. Sickle cell anaemia is a hereditary disease due to a recessive gene which changes normal haemoglobin (Hb – A) to abnormal haemoglobin (Hb – S). The red blood cells of people with sickle cell anaemia are sickle shaped.
(a) What are the possible phenotypes of the off springs of a man who is heterozygous and a woman who is also heterozygous? Show your working............................................

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