DP Biology (first assessment 2025)

Test builder »

Question SPM.2.SL.TZ0.6b

Select a Test
Date May Specimen-2023 Marks available [Maximum mark: 2] Reference code SPM.2.SL.TZ0.6b
Level SL Paper 2 Time zone TZ0
Command term Explain Question number b Adapted from N/A
b.
[Maximum mark: 2]
SPM.2.SL.TZ0.6b
(b)

Explain how sexual reproduction gives rise to genetic variation.

[2]

Markscheme
  1.  recombination of parental alleles during fertilization;
  2.  fertilized egg contains a mixture of paternal and maternal chromosomes;
  3.  crossing over/meiosis gives rise to new combinations of alleles;

Syllabus sections