Exam 7: Patterns of Inheritance

The leaf color of a certain plant is controlled by one gene.For that gene,the allele G = orange and g = green.You have a plant with orange leaves but do not know whether that plant's genotype is GG or Gg.Which of the following would help you determine the plant's genotype?

The 9:3:3:1 ratio of phenotypes that occurs in the F2 generation of the cross shown below can be explained using

The genetic makeup of an organism,such as Gg,is its ________.

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

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

According to Mendel's law of ________,when gametes are formed,the separation of alleles for one gene is unrelated to the separation of alleles for other genes.

An allele is

Which of the following might explain how two separate genes control a single trait?

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

Jennifer uses a dihybrid cross of fruit flies to examine inheritance patterns for eye color (black or white)and head shape (round or elongated).This cross produces 10,000 offspring,and the ratio is 1 (black eyes,round head): 1 (black eyes,elongated head): 1 (white eyes,round head): 1 (white eyes,elongated head).Is this what Jennifer should have expected from a dihybrid cross? Explain why or why not.

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?

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

If you were a scientist studying patterns of inheritance in dogs and you were given extensive information about the inheritance of multiple physical traits,such as hair color and height,would you be able to piece together the entire genome of dogs? Explain your answer.

The figure shown below indicates two Labrador retrievers that are both homozygous recessive for fur color.One dog is brown and the other is yellow due to

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

The observation that individuals afflicted with albinism also always have vision problems is an example of

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?

Mendel's manuscript discussing his pea-breeding results is considered one of the two most important scientific papers of the nineteenth century because he was the first to explain how

Differentiate between pleiotropy and polygenic traits.