HEREDITY (PART 2) (QUIZIZZ REVIEW GAME)

__________ = a chart that is used to trace inheritance of a trait through multiple generations of related individuals

• energy pyramid

• pedigree

• Punnett square

• Venn diagram

Human height is a polygenic trait.  This means that the

• trait is completely controlled by only one pair of genes.

• trait is controlled by more than one pair of genes.

• trait is controlled by the genes inherited from the mother only.

• trait is controlled by the genes inherited from the father only.

A woman with O blood type and a man with AB blood type get married and have children.  What are the possible blood types of their children?

• 100% AB

• 50% A, 50% B

• 50% AB, 50% O

• 25% A, 25% B, 25% AB, 25% O

A recessive gene located on the X chromosome is the cause of hemophilia in affected individuals.  Males are more likely to have hemophilia because

• females have no copies of the X chromosome.

• males have only one copy of the X chromosome.

• males have two copies of the X chromosome.

• hemophilia is associated with high testosterone levels.

A cattle farmer genetically crosses a cow (female) with a white coat with a bull (male) with a red coat.  The resulting calf (offspring) is roan, which means there are red and white hairs intermixed in the coat of the calf.  The genes for coat color in cattle are co-dominant.  What are the phenotypes of the offspring produced from two roan cattle?

• 100% pink

• 100% roan

• 75% red and 25% white

• 25% red, 50% roan, and 25% white

If hemophilia is a recessive, X-linked trait, what genotype represents a carrier for hemophilia?

Trey goes to a rabbit farm to look at a litter of newborn rabbits.  The newborns are all different colors.  They are gray, black, white, light brown, and dark brown.  What type of inheritance pattern are these rabbits likely displaying?

• codominance

• dominant-recessive

• incomplete dominance

• multiple alleles

In a population of weasels, black (B) and white (W) are co-dominant traits. The heterozygous genotype produces black and white spotted weasels. Consider the genetic cross shown in the Punnett square. If there are 40 baby weasels born as a result of the cross, how many should be black?

• 0

• 5

• 10

• 20

A scientist observes that a certain trait is determined by a single allele. An organism inherited one version of the trait from one parent and another version from the other parent. Both versions of the trait are expressed in the phenotype of the offspring. Which pattern of inheritance best classifies the observed trait?

• dominance

• sex-linkage

• co-dominance

• incomplete dominance

This is an example of __________ .

• co-dominance

• dominance

• incomplete dominance

• sex linkage