Q1 MCQ Drill: 2023 Life Sciences P2 (2023 NSC May/June Mid-Year Examination)

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

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5 multiple-choice questions taken verbatim from Section A of the official 2023 NSC May/June Mid-Year 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 5 2 Marks

According to Lamarck's theory for evolution, …

A. acquired characteristics are not inherited.

B. organisms evolve because they adapt to their environment.

C. there is variation amongst offspring.

D. environmental changes have no influence on species diversity.

Question 2 of 5 2 Marks

After the discovery of a fossil, scientists classified it as an African ape because it had a …

A. large cranium, a prognathous jaw and large canines.

B. small cranium, a non-prognathous jaw and large canines.

C. small cranium, a prognathous jaw and large canines.

D. large cranium, a prognathous jaw and small canines.

Question 3 of 5 2 Marks

The statements below describe the steps in the process of cloning an animal. (i) The embryo is implanted into the uterus of an adult female for development. (ii) The nucleus from a somatic cell of the donor is extracted. (iii) The nucleus from the somatic cell is inserted into the ovum. (iv) The nucleus from the ovum of another individual is removed. (v) The ovum with the new nucleus is given an electric shock to stimulate cell division and the formation of the embryo. Which combination shows the CORRECT order of the steps?

A. (ii)✓ (iv)✓ (iii)✓ (v)✓ (i)

B. (ii)✓ (iii)✓ (iv)✓ (v)✓ (i)

C. (i)✓ (ii)✓ (iii)✓ (iv)✓ (v)

D. (ii)✓ (iv)✓ (v)✓ (iii)✓ (i)

Question 4 of 5 2 Marks

The following are characteristics of a group of animals: (i) Able to interbreed (ii) Occupy the same habitat (iii) Produce infertile offspring (iv) Belong to the same species Which combination CORRECTLY represents a population?

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

B. Only (i), (ii) and (iv)

C. Only (i), (ii) and (iii)

D. Only (i) and (iv)

Question 5 of 5 2 Marks

During Anaphase II of meiosis, the two chromatids of a chromosome are pulled apart, each moving towards opposite poles at a rate of 1 micrometre per second. The distance, in micrometres, between the chromatids after 20 seconds is …

A. 10.

B. 20.

C. 30.

D. 40.

Q1 MCQ Drill: 2023 Life Sciences P2 (2023 NSC May/June Mid-Year Examination)

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