In radishes, long or round are homozygous forms of an incompletely dominant gene, and oval is the phenotype of the heterozygote. If a long radish is crossed with a round radish, which of the following phenotypic ratios of the F2 generation is correct?

Protein products of which genes “put the brakes” on the cell cycle when DNA is damaged or incompletely copied?

Stress-induced depression has been found to be a result of which of the following?

In tomatoes, red (R) is dominant to yellow (r), tall (D) is dominant to dwarf (d), and smooth (H) is dominant to hairy (h). How many possible different phenotypes are there in relationship to these three characteristics?

In both mitosis and meiosis II, ____________.

In humans, environmental factors causing stress can impact

During ____, microtubules fasten the cell’s chromosomes to the spindle poles.

Chromosome segregation in anaphase I is consistent with which statement?

In humans, normal skin pigmentation is influenced by a dominant gene (C), which allows pigmentation to develop. All individuals who are homozygous for the recessive allele (c) are unable to produce an enzyme needed for melanin formation and are therefore referred to as albino. Two normal parents produce an albino child. What are the chances that the next child will be an albino?

Four of the following will stimulate the production of males in water fleas. Which one is the exception?