Dominant and Recessive Traits Flash Cards

What is the purpose of a Punnett square?

• To predict the genetic outcomes of a cross between two organisms.

• To determine the physical appearance of an organism.

• To analyze the behavior of organisms in their environment.

• To classify organisms into different species.

What is the difference between homozygous and heterozygous?

• Homozygous has two identical alleles (AA or aa), while heterozygous has two different alleles (Aa).

• Homozygous has two different alleles (Aa), while heterozygous has two identical alleles (AA or aa).

• Homozygous refers to a single allele, while heterozygous refers to multiple alleles.

• Homozygous and heterozygous both refer to the same genetic condition.

What does genotype refer to?

• The physical appearance of an organism.

• The genetic makeup of an organism, represented by alleles.

• The environmental factors affecting an organism.

• The evolutionary history of an organism.

What is the significance of dominant and recessive traits in inheritance?

• They determine how traits are passed from parents to offspring and expressed in the phenotype.

• They are only relevant in plant breeding and have no effect on animals.

• They are used to classify organisms into different species.

• They have no impact on the genetic makeup of an organism.

Dominant alleles are written with:

• Lower case sometimes

• Upper case always

• Numbers only

• Special characters only

If White phenotype is Recessive then its genotype will be

• AA

• Aa

• aa

• A

Select Recessive traits:

• TT

• Tt

• tt

• T

The genotype Gg is

• Recessive

• Dominant

• Homozygous

• Heterozygous

What is a dominant trait?

• A trait that is expressed when at least one dominant allele is present.

• A trait that is only expressed when two recessive alleles are present.

• A trait that is always expressed regardless of the alleles present.

• A trait that can be masked by a dominant allele.

TT and Tt are

• Recessive

• Dominant

• Codominant

• Incomplete Dominant