Q1 MCQ Drill: 2024 Life Sciences P2 (2024 NSC October/November National Examination)

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

12:00

8 multiple-choice questions taken verbatim from Section A of the official 2024 NSC October/November National 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 8 2 Marks

Which ONE of the following organelles is the site of protein synthesis?

A. Ribosomes

B. Chloroplasts

C. Mitochondria

D. Centrosomes

Question 2 of 8 2 Marks

An organism has the genotype TT. The CORRECT term which describes this organism's genotype is …

A. heterozygous dominant.

B. heterozygous recessive.

C. homozygous dominant.

D. homozygous recessive.

Question 3 of 8 2 Marks

Down syndrome is a genetic disorder where an individual has an extra copy of chromosome 21. Which ONE of the following may lead to Down syndrome?

A. Failure of chromosomes to replicate during mitosis

B. Failure of chromosome pairs to separate during meiosis

C. Failure of chromosomes to form pairs during fertilisation

D. Failure of chromosome pairs to cross over during meiosis

Question 4 of 8 2 Marks

A gradual change in the characteristics of a species over time is known as …

A. punctuated equilibrium.

B. genetic engineering.

C. speciation.

D. biological evolution.

Question 5 of 8 2 Marks

Which ONE of the following is a reproductive isolation mechanism?

A. Adaptation to the same pollinator

B. Species-specific courtship behaviour

C. Production of fertile offspring

D. Breeding at the same time of the year

Question 6 of 8 2 Marks

Analysis of mitochondrial DNA is an example of this line of evidence:

A. Fossil evidence

B. Modification by descent

C. Biogeography

D. Genetic evidence

Question 7 of 8 2 Marks

Which ONE of the following scientists discovered the fossil Taung Child?

A. Lee Berger

B. Ron Clarke

C. Raymond Dart

D. Robert Broom

Question 8 of 8 2 Marks

Which ONE of the following is produced at the end of translation?

A. A DNA molecule

B. A messenger RNA molecule

C. A protein

D. An amino acid

Q1 MCQ Drill: 2024 Life Sciences P2 (2024 NSC October/November National Examination)

Score: 0 / 0 Marks

Confirm Action