Q1 MCQ Drill: 2024 Life Sciences P2 (2024 September Provincial Preparatory (Trial) Examination)

Life Sciences Past Paper Question 1 Drill Level 1: Knowledge & Recall

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6 multiple-choice questions taken verbatim from Section A of the official 2024 September Provincial Preparatory (Trial) Examination Life Sciences Paper 2, auto-marked against the official marking guideline. Questions that rely on diagrams or graphs are excluded - see the full paper for those.

Question 1 of 6 2 Marks

The various factors controlling the different characteristics are separate entities, not influencing each other in any way, and sorting themselves out independently during gamete formation. This refers to …

A. Mendel’s principle of segregation.

B. Mendel’s principle of independent assortment.

C. Lamarck’s ‘law’ of the inheritance of acquired characteristics.

D. Chance fertilisation.

Question 2 of 6 2 Marks

Multiple alleles exists when …

A. one allele controls the inheritance of a gene.

B. two alleles control the inheritance of a gene.

C. alleles are inherited from two parents.

D. more than two alleles control the inheritance of a gene.

Question 3 of 6 2 Marks

How many nitrogenous bases are found in a protein made up of 66 amino acids?

A. 198

B. 22

C. 132

D. 66

Question 4 of 6 2 Marks

4 LIFE SCIENCES P2 (EC/SEPTEMBER 2024) QUESTIONS 1.1.6 AND 1.1.7 ARE BASED ON DNA PROFILING BELOW. A B C D E F (EC/SEPTEMBER 2024) LIFE SCIENCES P2 5 The parents of individual B are …

A. A and F.

B. C and E.

C. A and E.

D. D and F.

Question 5 of 6 2 Marks

4 LIFE SCIENCES P2 (EC/SEPTEMBER 2024) QUESTIONS 1.1.6 AND 1.1.7 ARE BASED ON DNA PROFILING BELOW. A B C D E F (EC/SEPTEMBER 2024) LIFE SCIENCES P2 5 Which ONE of the following options is NOT used for DNA profiling?

A. Matching tissues for organ transplants.

B. Diagnosis of inherited disorders.

C. Developing cures for inherited disorders.

D. Biological evidence in criminal cases.

Question 6 of 6 2 Marks

4 LIFE SCIENCES P2 (EC/SEPTEMBER 2024) QUESTIONS 1.1.6 AND 1.1.7 ARE BASED ON DNA PROFILING BELOW. A B C D E F (EC/SEPTEMBER 2024) LIFE SCIENCES P2 5 The diploid chromosomes composition in normal human males is …

A. 44 autosomes + XX gonosomes.

B. 22 autosomes + Y gonosomes.

C. 22 autosomes + XY gonosomes.

D. 44 autosomes + XY gonosomes.

Q1 MCQ Drill: 2024 Life Sciences P2 (2024 September Provincial Preparatory (Trial) Examination)

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