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Szh 105: Introduction To Genetics  Question Paper

Szh 105: Introduction To Genetics  

Course:Bachelor Of Science

Institution: Kenyatta University question papers

Exam Year:2012



DATE: MONDAY 26TH APRIL 2012 DATE: 11.00 A.M. – 1.00 P.M.
INSTRUCTIONS
Answer ALL questions in Section A and any ONE question in Section B.
Within a section ALL questions carry equal marks. Illustrate your answers and give
examples where appropriate.

SECTION A: Answer ALL questions (40 marks)
1.
Explain independent assortment in genetics.

2.
Explain briefly gene mutation.

3.
Describe a chromosome.

4.
Distinguish between a heterogametic sex and homogametic sex

5.
Explain how crossing over can unlink genes

6.
Explain the functions of DNA.

7.
Describe codominance.

8.
Explain the genetic code.

SECTION B: Answer ONE question (30 marks)

9.
Discuss the processes of transcription and translation in protein synthesis in a
eukaryocytic cell.
10.
Describe in details DNA replication. Draw diagrams to illustrate your answer.

11.
Discuss Mendelian Laws of inheritance






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