Review: Non-Mendelian Inheritance

If a father with blood type O is crossed with a mother with blood type O, what will be the genotype of the offspring?

• 100% OO.

• 50% AO, 50% OO.

• 25% AA, 50% AO, 25% OO.

• 100% AO.

What is a Punnett square?

• A diagram used to predict the genotypes of a particular cross or breeding experiment.

• A tool for measuring the height of plants.

• A method for calculating the area of a square.

• A chart used to track the growth of organisms.

What is codominance?

• A form of inheritance where one allele is completely dominant over the other.

• A form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.

• A genetic condition where only one allele is expressed in the phenotype.

• A type of mutation that leads to the loss of function of a gene.

What is incomplete dominance?

• A form of inheritance where the phenotype of a heterozygote is identical to one of the homozygotes.

• A form of inheritance where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

• A genetic condition where one allele completely masks the effect of another allele.

• A type of mutation that leads to a complete loss of function in a gene.

What is the expected phenotype ratio in the offspring of a monohybrid cross between two heterozygous parents?

• 1:1 ratio of dominant to recessive phenotypes.

• 2:1 ratio of dominant to recessive phenotypes.

• 3:1 ratio of dominant to recessive phenotypes.

• 4:0 ratio of dominant to recessive phenotypes.

What are multiple alleles?

• Multiple alleles refer to the presence of more than two alleles for a genetic trait.

• Multiple alleles refer to the presence of exactly two alleles for a genetic trait.

• Multiple alleles are different forms of a single allele.

• Multiple alleles are alleles that are always dominant.

If a dark brown horse and a white horse are bred, and the offspring are palomino (tan), what type of inheritance is this?

• Complete dominance

• Codominance

• Incomplete dominance

• Polygenic inheritance

What is the phenotype of a plant with genotype rr?

• Red flowers

• Yellow flowers

• White flowers

• Blue flowers

In a plant species, if a plant with genotype Rr is crossed with a plant with genotype rr, what is the probability of obtaining a plant with red flowers?

• 25%

• 50%

• 75%

• 100%

What is the phenotype of a plant with genotype Rr?

• The phenotype is red flowers.

• The phenotype is yellow flowers.

• The phenotype is white flowers.

• The phenotype is blue flowers.