Genetics Quiz

Make sure to try these on a piece of paper first

Question #3-1 Paper 2 Difficulty: Medium

A. The allele for tall plants (T) is dominant over the allele for dwarf plants (t). State the possible genotypes and phenotypes of a plant for this trait.

B. Mendel is known as the father of genetics for his extensive experimental work with peas and different types of crosses. In a classic example of Mendel’s work, he determined that the gene for pea colour had two alleles. The allele for yellow colour was dominant and the allele for green colour is recessive. Draw a Punnett square to cross two heterozygous yellow peas and determine the predicted genotype and phenotype ratios of the possible offspring.

C. Explain how a base pair substitution in DNA can cause sickle-cell anemia.

See solution
Question #3-2 Paper 1 Difficulty: Medium

This question is part of the Biology Online Revision Course
(but keep in mind that at least the first question of each topic is free!)

Get full access
Question #3-3 Paper 1 Difficulty: Easy

This question is part of the Biology Online Revision Course
(but keep in mind that at least the first question of each topic is free!)

Get full access
Question #3-4 Paper 1 Difficulty: Easy

This question is part of the Biology Online Revision Course
(but keep in mind that at least the first question of each topic is free!)

Get full access
Question #3-5 Paper 2 Difficulty: Hard

This question is part of the Biology Online Revision Course
(but keep in mind that at least the first question of each topic is free!)

Get full access