Exam 7: Patterns of Inheritance

Consider a gene with two alleles that show complete dominance.When two heterozygotes for this gene breed,they have a 25 percent chance of producing a homozygous recessive offspring.The next time these two individuals breed,what are the chances that they will once again have a homozygous recessive progeny?

What type of inheritance pattern is indicated in the body size of the dogs shown below? How does this pattern differ from Mendelian traits?

The coat color in a Siamese cat is determined by a temperature-sensitive allele that allows the brownish pigment melanin to be produced in extremities of the body.What might explain this phenomenon?

A Punnett square shows the possible ways that alleles combine to form________.

Up to 300 inherited diseases found in dogs are similar to human diseases.Based on the information shown below,why might it be easier to study the genetics of these diseases in dogs rather than in humans?

Most traits in humans involve complex inheritance where the trait is governed by the action of more than one ________.

The figure shown below illustrates

Match a mode of inheritance to a statement listed below. -The frizzle gene in chickens affects many traits,including feather type,metabolic rate,blood flow rates,and digestion.

The individual who used data from breeding garden peas to discover the patterns of inheritance that form the foundation of modern-day genetics was ________.

Mendel's laws of segregation and independent assortment both have their biological basis in events that take place during

In Mendel's controlled mating experiments,the individuals produced by crossing two true-breeding parents are referred to as

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

If two different alleles for the same trait have an equal effect on the phenotype,the alleles are

Based on Mendelian inheritance,would it be necessary to have both the genotype and phenotype for an organism when attempting to predict the inheritance pattern for a trait,such as hair color,in offspring?

It would become nearly impossible to predict the phenotype of an individual with a known genotype if the

If an individual is a carrier for a recessive disorder (with one copy of the recessive allele)and his or her partner is also a carrier,what is the probability that they will produce a child affected by the disorder? Explain your answer.

Which of the following expresses Mendel's law of segregation?

In a genetic cross in which the heterozygous phenotype is intermediate between the two homozygous phenotypes,________ dominance is expressed.

Which of the following is the mechanism described by Mendel that results in a new combination of alleles in a pea plant seed?

Match the following terms with their definitions. -a variant of a given gene