Q1 MCQ Drill: 2024 Life Sciences P2 (2024 NSC May/June Supplementary 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 NSC May/June Supplementary 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

Which female scientist took X-rays of the DNA molecule and concluded that DNA is helix-shaped?

A. Watson

B. Franklin

C. Crick

D. Wilkins

Question 2 of 6 2 Marks

A cell with 14 chromosomes undergoes meiosis. What is the number of chromatids in this cell at the beginning of meiosis?

A. 7

B. 14

C. 28

D. 56

Question 3 of 6 2 Marks

In the inheritance of blood groups there are …

A. two phenotypes controlled by three alleles.

B. three phenotypes controlled by two alleles.

C. four phenotypes controlled by three alleles.

D. four phenotypes controlled by two alleles.

Question 4 of 6 2 Marks

The following statements relate to cell division: (i) Crossing over occurs (ii) Contributes to genetic variation in a population (iii) Produces cells with a diploid number of chromosomes (iv) Produces somatic cells only Which ONE of the following combinations of statements refer to meiosis?

A. (i), (ii) and (iii) only

B. (i) and (ii) only

C. (ii) and (iv) only

D. (ii) and (iii) only

Question 5 of 6 2 Marks

A segment of DNA contains: ✓ 31% of adenine in strand 1 ✓ 12% of cytosine in strand 2 ✓ 27% of guanine in strand 2 In this segment of DNA, there will also be …

A. 31% of adenine in strand 2

B. 12% of cytosine in strand 1

C. 31% of thymine in strand 2

D. 27% of cytosine in strand 2

Question 6 of 6 2 Marks

The phase in meiosis where chromatids are pulled towards poles is …

A. anaphase I

B. telophase I

C. metaphase II

D. anaphase II

Q1 MCQ Drill: 2024 Life Sciences P2 (2024 NSC May/June Supplementary Examination)

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