IB Biology 10.2 Inheritance HL Quiz

What does it mean when gene loci are said to be linked?

• They are located on different chromosomes.

• They are located on the same chromosome.

• They assort independently during meiosis.

• They are always inherited together.

What is the significance of using a chi-squared test in genetics?

• To determine the number of chromosomes.

• To identify the sequence of DNA.

• To determine if the difference between observed and expected frequency distribution is statistically significant.

• To calculate the probability of mutation.

What is an example of a polygenic trait?

• Hairline

• Blood type

• Human height

• Hair texture

How are alleles usually shown in dihybrid crosses?

• As horizontal pairs

• As vertical pairs

• As diagonal pairs

• As circular pairs

What is the expected ratio of offspring types when considering Rhesus blood type and the shape of blood cells in a cross between Davod and Sarah?

• 1:1:1:1

• 3:1

• 9:3:3:1

• 1:2:1

What happens when two genes are very close together on a chromosome?

• They are more likely to crossover.

• They are less likely to crossover.

• They always crossover.

• They never crossover.

What type of gametes will Sarah mostly produce if her alleles are DE and de?

• DE and de

• Dd and Ee

• dE and De

• DdEe and ddee