Genetics Part II Practice

What did Mendel describe as a dominant trait?

• a trait that is seen in every offspring

• a trait that is a result of environmental influence

• a trait that is only visible if both alleles are dominant

• a trait that is visble if at least one allele is dominant

Who is most likely to inherit a x-linked trait?

• males

• females

• males and females would be equal

• none of the above

If a person inherits a recessive ee allele, which of the following statements is correct?

• the genotype is ee

• the phenotype is ee

• the genotype ee is an acquired trait

• the phenotype ee is an acquired trait

If a person inherits BB for hair color, and another person inherits bb for hair color. Their offspring could have a Bb allele. What is true of B and b alleles

• the two are different genes

• they result in the same phenotype

• the two are different versions of the same gene

• they provide identical instructions about different traits

Which of the following is an example of an inherited trait

• freckles

• a small scar

• short hair

• pierced ears

What is an acquired trait?

• a trait that is the result of many genes

• a trait that is learned or gained from one's environment

• a trait that is passed from parents to offspring

• none of the above

A person that does not have a disease by possess the trait for that disease with the potential to pass it on to future offspring is said to be?

• affected

• not affected

• a carrier

• all of the above

BB is an example of ?

• a heterozygous allele

• a homozygous recessive allele

• a homozygous dominant allele

• all of the above

Which of the following is heterozygous

• BB

• Bb

• bb

• none of the above

Which of the following best describes an x-linked gene?

• One found only on a y chromosome

• one that is only found on an X chromosome

• one that can transmit a disorder

• all of the above