Quelpr

CSEC Biology · May/June 2014 · Paper 2 · Question 5(b)(ii)

A man with normal pigmentation and an albino woman produce two children, one of whom is an albino. (Note that albinism is a trait caused by the inheritance of a recessive allele.)

Using appropriate symbols, draw a genetics diagram to show the genotypes of the parents and the expected phenotypes of the offspring.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 5(a)Define the terms 'genotype', 'phenotype', 'recessive' and 'dominant'.[4 marks]
  2. 5(b)(i)Give TWO examples of traits that show continuous variation.[2 marks]
  3. 5(c)Use the theory of natural selection to account for this.[4 marks]

More practice: the rest of this paper · more Genetic Concepts questions · all CSEC Biology past papers