Exam 9: Patterns of Inheritance

Which of the following pairs of words can be used correctly to describe alleles?

A mutation that occurs in a diploid cell can be inherited only if the

Alternate versions of the same gene,such as blue or brown for eye color,are known as ________.

Which of the following statements is NOT true?

A thoroughbred racehorse could have,at most,________ alleles of the same gene.

What is the smallest number of traits that are needed to test Mendel's law of independent assortment?

Cystic fibrosis is caused by a recessive gene.If C = normal and c = cystic fibrosis,how can a child with cystic fibrosis have two parents who do not have cystic fibrosis?

Which of the following choices represents the genotype of an individual diploid organism?

Which of the following represents all of the possible gametes that can be formed by an individual with the genetic makeup Ff GgHH ?

A tall plant mates with itself and produces all tall offspring.This cross is repeated for many generations with the same results.The parental plant is most likely

One of the first medical tests a newborn receives determines if the child has phenylketonuria (PKU).PKU is the result of a mutation in a single gene that causes mental retardation and a host of other phenotypes (light hair and skin color,eczema,and a "mousy" smell).By detecting PKU early,doctors are able to reduce the effect of this condition with a modified diet.PKU is an example of

By observing the offspring in a series of pea-breeding experiments,Gregor Mendel deduced the laws of ________.

A recessive allele can only appear in the phenotype of an individual

In the following Punnett square,the genotypes inside the boxes (a few are indicated by arrows here)represent the number and type of offspring that a given pair of individuals will produce when mated.

Mendel's laws were able to accurately predict the pattern of inheritance for situations in which

The first reaction in the chain of enzyme-catalyzed chemical reactions that convert the amino acid tyrosine into eumelanin or pheomelanin is orchestrated by an enzyme encoded by the C gene.This enzyme is called ________.

We need a hammer to pound nails into a board.Even if we have the nails,we cannot pound them without first getting hold of a hammer.This is similar to the genetic relationship known as

The Iᴬ and Iᴮ alleles involved in human blood type differ in that they attach different ________ to the surface of red blood cells.

In the following Punnett square,the lettered circles on the top and left of the square (indicated by the arrows)represent the

The black arrow in the following image indicates one of the structures within a cell's nucleus that carries hereditary information.These structures contain segments that commonly encode the instructions for building proteins; one of these segments is called a(n)