During the cell cycle, a cell must grow and replicate its DNA before it is ready to divide. Which phase is dedicated to this growth and synthesis, and what are the main events occurring?

Hemophilia is a sex-linked trait on the X chromosome.  If a male with hemophilia and a female carrier have offspring, what percentage of the offspring are predicted to be carriers?  

Hemophilia is a sex-linked trait on the X chromosome.  If a male with hemophilia and a female carrier have offspring, what offspring are predicted to neither have nor be carriers of the disease?

Polydactylism, the presentation of extra digits on hands or feet, is carried on the dominant allele.  In the case of two parents with polydactylism, what percentage of their offspring are predicted to manifest the anomaly?

In a cell culture, most cells appear to have loosely packed chromatin and no visible chromosomes. The cells are performing normal metabolic activities but not dividing and there has been no replication of DNA. Which phase of the cell cycle best describes these cells?

A diploid germ cell in a frog contains 10 chromosomes. Following fertilization, the resulting zygote undergoes mitosis. How many daughter cells are produced by this single mitotic event, and how many chromosomes does each daughter cell contain?

Using Kepler’s Third Law (P2 = a3) calculate the orbital period of an asteroid around our Sun that has an average distance of 2.75 AU.  Give your answer in years, limiting the answer to three significant figures.

A trihybrid cross is performed in mice, with the following genotypes: RrTtBb x RrTtBb. The alleles for R, T, and B are all dominant. What is the probability that an offspring will be homozygous dominant for all three traits (RRTTBB)?

Match the following description to the proper moon.

Which of the following statements about the sunspot cycle is not true?