• If the frequency of thymine in a DNA is 22%, what is the frequency of guanine?

• What is the monomer of a nucleic acid? List its components.

• Who (which scientist(s)) used bacteriophages in their experiments? Why?

• What is bacterial transformation?• List the types of gene mutation.• When does crossing over occurs?• When in the cell cycle does replication occur?

• List three differences between the replication of the lagging strand and the leading strand.

• List three differences between the chromosome behavior during mitosis and meiosis.

• Define nondisjunction and name one of its consequences.

• Name two differences between spermatogenesis and oogenesis.

• Define codominance.• Define the law of independent assortment.

• An animal has a diploid number 8. During meiosis, how many chromatids are present– In the tetrad stage– In late telophase of the first meiotic division– In metaphase of the second meiotic division

• Define gene linkage.• Define epistasis.• The ABO blood type locus has been mapped

on chromosome 9. A father who has type AB blood and a mother who has type O blood has a child with trisomy 9 and with A blood. Can you tell from the information in which parent the nondisjuction occurred? Explain.

• Which one of Mendel’s laws relates to the inheritance of alleles for a single character? Which law relates to the inheritance of alleles for two characters in a dihybrid cross?

• In tigers, a recessive allele causes the absence of fur pigmentation (white color) and a cross-eyed condition. If two heterozygous tigers to this gene are mated, what percentage of their offspring will be cross-eyed? White? What type of inheritance is this?