Biology SB3

The phenotype of an organism

A white snapdragon and a red snapdragon produce pink snapdragons when crossed. This is an example of

Huntington’s disease is caused by a dominant allele. If a woman who is heterozygous for the trait marries a healthy man, what is the chance that their child will have the disease?

If a homozygous dominant individual is crossed with a homozygous recessive individual, what percent of the offspring will have the dominant phenotype?

Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represents a genotype of a pea plant that is heterozygous for tallness?

Mendel's law of ____ states that a random assortment of maternally and paternally derived chromosomes in meiosis results in gametes that have different combinations of these genes.

A species of mice can have gray or black fur and long or short tails. A cross between black-furred, long-tailed mice and gray-furred, short-tailed mice produce all black-furred, long-tailed offspring. Using the gene symbols G for black, g for gray, S for long and s for short, what would be the genotype of a gray-furred, short-tailed mouse?

In the chart, the recessive trait is