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

If wire hair (W) is dominant to smooth hair (w), and you find a wire-haired puppy, which type of puppy would you use in a testcross to determine its genotype?

All of the following pea plant feature were favorable to the success of Mendel’s experiments, except

In a certain plant, when individuals with blue flowers are crossed with individuals with blue flowers, only blue flowers are produced. Plants with red flowers crossed with plants with red flowers sometimes produce only red flowers, although other times they produce either red or blue flowers. When plants with red flowers are crossed with plants with blue flowers, sometimes only red flowers are produced; other times either red or blue flowers are produced. Which of the following is true?

In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white. What is the genotype of the parents?

In sweet peas, dominant alleles C and P are necessary for colored flowers. In the absence of either (__ pp or cc __) or both (cc pp), the flowers are white. What the phenotypic ratios be for the cross of Cc pp x cc Pp?

Which phase(s) of meiosis occur in a similar manner to mitosis?

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

In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with purple flowers crossed with a tall plant with purple flowers produces 3/4 tall purple and 1/4 tall white. What is the genotype of the parents?

Which action is unable to produce variation?