Question 1
In eukaryotes, homologous recombination is initiated by ________.
◦ Rad51 generating double-stranded DNA breaks
◦ RecA, RecB, and RecC generating single-stranded DNA breaks
◦ Spo11 generating double-stranded DNA breaks
◦ p53 generating single-stranded DNA breaks
◦ ATM signaling double-stranded DNA breaks
Question 2
Studies of gene mutation frequencies have shown that ________.
◦ mutations are rare, and genomes are generally stable
◦ mutation are common and adaptive
◦ mutation frequencies are consistent between organisms, and each region of DNA is equally susceptible to random mutations
◦ mutations occur only at certain nucleotides and not others
◦ mutations affect RNA, but do not change DNA sequence