Exam 7: Patterns of Inheritance

The pleiotropy that occurs when a single gene controls multiple skeletal traits in dogs,such as leg bone length and skull size,may be explained because

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

When Mendel proposed the law of segregation,which of the following pieces of information did he NOT have?

In a genetic cross of Gg with Gg guinea pigs,none of the four offspring were gg.This

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

Gregor Mendel began his studies by crossing plants that bred true for flower color.One parent bred true for purple flower color and the other parent bred true for white flower color.The flower color purple is dominant and the flower color white is recessive.If Mendel had erroneously crossed purple-flowered plants that were not true-breeding with white-flowered plants,how would this have altered the first generation produced?

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

Match the predicted genotype frequencies of heterozygous offspring from the genetic crosses given. -a homozygous straight hair rabbit and a homozygous curly hair rabbit

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.

Match a mode of inheritance to a statement listed below. -The color of wheat kernels is controlled by the interaction of two separate genes,with one gene affecting the expression of the other gene.

In a particular plant,two genes control leaf shape and color.Round leaves (R)are dominant to jagged leaves (r).Yellow fruits (Y)are dominant to white fruits (y).A true-breeding round-leaved,yellow-fruited plant is mated with a true-breeding jagged-leaved,white-fruited plant.What are the genotypes of the plants involved in this cross?

Match the following terms with their definitions. -a molecule of DNA and associated proteins

Mendel used ________ as his research organism to study patterns of genetic inheritance.

A chestnut-colored (red-colored)horse is mated with a cremello (cream-colored)horse.Over a 10-year period,all of their offspring are palominos (gold-colored).This pattern of inheritance is best explained by

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

Two organisms that are true-breeding for a certain genetic characteristic are mated and their offspring analyzed.Which of the following statements about this situation is true?

Which of the following did Gregor Mendel notice in garden peas?

Feather color in a certain species of bird is controlled by a pair of alleles that exhibit incomplete dominance.If birds that are homozygous for one allele are black and birds that are homozygous for the other allele are white,then heterozygous birds would be

Suppose D were dominant and d were recessive,and you could label the D allele in the P generation with a radioactive substance that could be inherited over several generations.You create hybrids by mating your radioactive DD individuals to dd individuals.Finally,you cross two F1 individuals (with the Dd genotype).In 1,000 offspring,how many would you predict would be radioactive?

Which of the following does NOT represent a phenotype?