Chapter 8

Chromosome number ___. a. refers to a particular chromosome pair in a cell b. is an identifiable feature of a species c. is like a set of books d. all of the above

Sister chromatids connect at the ____.

3\. The basic unit that structurally organizes a eukaryotic chromosome is the____. a. higher-order coiling b. double helix c. base sequence d. nucleosome

Which is not a nucleotide base in DNA? a. adenine b. guanine c. uracil d. thymine e. cytosine f. All are in DNA.

What are the base-pairing rules for DNA? a. \(A-G, T-C\) b. \(A-C, T-G\) c. \(A-U, C-G\) d. \(A-T, G-C\)

One species' DNA differs from others in its ___. a. sugars b. phosphates c. base sequence d. all of the above

When DNA replication begins, ____. a. the two DNA strands unwind from each other b. the two DNA strands condense for base transfers c. two DNA molecules bond d. old strands move to find new strands

DNA replication requires a. template DNA b. free nucleotides c. DNA polymerase d. all of the above

Show the complementary strand of DNA that forms on this template DNA fragment during replication: \(5^{\prime}-\) GGTTTCTTCAAGAGA \(-3^{\prime}\)

______ 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 e. all of the above

The DNA of each species has unique ____ that set it apart from the DNA of all other species. a. nucleotides b. chromosomes c. sequencess d. bases

_____ can be used to produce genetically identical organisms (clones) a. SCNT b. Embryo splitting c. Therapeutic cloning d. all of the above

A karyotype reveals the ____ of a single cell. a. base sequences b. chromosomes c. hereditary information d. clones

Match the terms appropriately. ______bacteriophage ______ clone ______nucleotide ______ diploid ______DNA ligase ______DNA polymerase ______ autosome a. nitrogen-containing base, sugar, phosphate group(s) b. copy of an organism c. does not determine sex d. only DNA and protein e. fills in gaps, seals breaks in a DNA strand f. two chromosomes of each type g. adds nucleotides to a growing DNA strand