Mendelian Genetics Quiz

How many chromosomes do human cells contain?

• 20

• 23

• 50

• 46

What is an allele?

• A section on a chromosome that codes for a specific gene

• A type of cell

• A type of protein

• A type of blood cell

What does it mean to be homozygous?

• Having two different alleles for a specific gene

• Having three alleles for a specific gene

• Having two identical alleles for a specific gene

• Having no alleles for a specific gene

Which allele is dominant for blood type?

• AB

• B

• A

• O

What does genotype refer to?

• Physical traits

• DNA of a person

• Inherited traits

• Blood type

What is the phenotype for a person with genotype AO?

• Blood type O

• Blood type B

• Blood type A

• Blood type AB

What is the Punnett Square used for?

• To determine blood type

• To determine the possible genotypes of offspring

• To determine the phenotype of offspring

• To determine the number of chromosomes

If both parents have genotype AO, what percentage of their children will have blood type A?

• 100%

• 75%

• 50%

• 25%

What percentage of the children will have blood type O if both parents have genotype AO?

• 100%

• 50%

• 75%

• 25%

What did we learn about in Mendelian Genetics?

• The process of cell division

• The function of blood cells

• The structure of DNA

• The difference between genotype and phenotype