Problem 12
After DNA replication, a eukaryotic chromosome______ a. consists of two sister chromatids \(\mathrm{b}\) has a characteristic \(\mathrm{X}\) shape c. is constricted at the centromere d. all of the above
Problem 13
All mutations _____. a. cause cancer c. are caused by radiation b. lead to evolution d. change the DNA sequence
Problem 14
_____ is an example of reproductive cloning. a. Somatic cell nuclear transfer (SCNT) b. Multiple offspring from the same pregnancy c. Artificial embryo splitting d. a and \(c\)
Problem 15
Match the terms appropriately. ______bacteriophage clone ______nucleotide ______diploid DNA ligase DNA polymerase ______autosome _______mutation a. nitrogen-containing base, sugar, phosphate group(s) b. copy of an organism c. does not determine sex d. only DNA and protein e. seals breaks in a DNA strand f. can cause cancer g. two chromosomes of each type h. adds nucleotides to a growing DNA strand
Problem 15
In eukaryotic chromosomes, DNA wraps around _____. a. histone proteins c. centromeres b. nucleosomes d. none of the above
