Concept 5 Review

The form of a gene that is always expressed if present is the form.

Two heterozygous purple-flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic results?

What law BEST explains why an organism with ‘Tt’ will show only the dominant phenotype?

If an organism inherits one dominant allele and one recessive allele for eye color, their genotype would be:

Two parents have the genotype Gg for a genetic disorder caused by a recessive allele. What is the chance that any of their children will inherit the disorder?

Which Mendelian law of inheritance states that organisms inherit two copies of each gene and donate one copy to each of their offspring?

In pigs, the allele for a wavy, rough coat (R) is dominant to the allele for a soft, fine coat (r). A rough coat boar and asoft coat sow mate. They produce several litters, 50% are rough coat and 50% are smooth coat. What must be thegenotypes of the parents to create this phenotypic ratio?

Imagine two heterozygous parents. Each has a dominant allele (B) for brown eyes and a recessive allele (b) for blueeyes. What would the genotypic ratio of the offspring be?

For an XX female to express a recessive sex-linked trait, she must have _____________.

Human height occurs in a continuous range because it is affected by the interaction of many genes, making it a(n)

Red hair and freckles are commonly inherited together. Which of following patterns ofinheritance explains this?

In a newly discovered species of flower, it was discovered that the color of the flowers is determined by two different genes. Which of the following inheritance patterns is this?

Mutations can be caused by all of the following except _____________.

In order for a mutation to be passed on from parent to offspring, the mutation must occur in

On a pedigree, how would a female individual with a disease be notated?