Ls1180 Unit 1 Biology Key
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Faculty of Science
Undergraduate Modular Scheme
Session 2010/2011
Semester 2
Level 4
MODULE: LS1180: Genetics and Molecular Biology
DATE: 31 May 2011
TIME: 09.30 – 11.30
Instructions to Candidates
This paper contains THIRTY-EIGHT questions in FIVE sections: Sections A, B, C, D and E. Answer THIRTY-FOUR questions only Section A: THIS SECTION HAS BEEN WITHHELD BY THE FACULTY Answer ALL THIRTY questions on the MCQ sheet provided Section B: Answer ONE question Section C: Answer ONE question Section D: Answer ONE question Section E: Answer ONE question
Section A is worth 30 marks and Sections B to E are worth 15 marks each
ANSWER SECTIONS B TO E IN SEPARATE ANSWER BOOKS …show more content…
SECTION B
Answer ONE question from this section
1. Draw an annotated diagram to illustrate the initiation of transcription in Eukaryotes. Label components in the diagram, as necessary, and briefly outline the process.
(15 marks)
2. Name five factors that influence the distribution of genes in a population to upset the Hardy Weinberg equilibrium, and describe each using an example
(15 marks)
SECTION C
Answer ONE question from this section
3. The following is a pedigree of a family in which a rare form of colour blindness is found (filled-in symbols). Indicate as much as you can about the genotypes of all individuals in the pedigree.
[pic]
(15 marks)
4. A locus that affects susceptibility to a degenerative brain disease has two alleles, A and a. In a population, 16 people have genotype AA, 92 have genotype Aa and 12 have genotype aa. Is this population evolving? Explain. (15 marks)
Continued...
SECTION D
Answer ONE question from this
Faculty of Science
Undergraduate Modular Scheme
Session 2010/2011
Semester 2
Level 4
MODULE: LS1180: Genetics and Molecular Biology
DATE: 31 May 2011
TIME: 09.30 – 11.30
Instructions to Candidates
This paper contains THIRTY-EIGHT questions in FIVE sections: Sections A, B, C, D and E. Answer THIRTY-FOUR questions only Section A: THIS SECTION HAS BEEN WITHHELD BY THE FACULTY Answer ALL THIRTY questions on the MCQ sheet provided Section B: Answer ONE question Section C: Answer ONE question Section D: Answer ONE question Section E: Answer ONE question
Section A is worth 30 marks and Sections B to E are worth 15 marks each
ANSWER SECTIONS B TO E IN SEPARATE ANSWER BOOKS …show more content…
SECTION B
Answer ONE question from this section
1. Draw an annotated diagram to illustrate the initiation of transcription in Eukaryotes. Label components in the diagram, as necessary, and briefly outline the process.
(15 marks)
2. Name five factors that influence the distribution of genes in a population to upset the Hardy Weinberg equilibrium, and describe each using an example
(15 marks)
SECTION C
Answer ONE question from this section
3. The following is a pedigree of a family in which a rare form of colour blindness is found (filled-in symbols). Indicate as much as you can about the genotypes of all individuals in the pedigree.
[pic]
(15 marks)
4. A locus that affects susceptibility to a degenerative brain disease has two alleles, A and a. In a population, 16 people have genotype AA, 92 have genotype Aa and 12 have genotype aa. Is this population evolving? Explain. (15 marks)
Continued...
SECTION D
Answer ONE question from this