English physician Archibald Garrod was the first to link inheritance and _________.
What did Frederick Griffith’s 1928 experiments with a pneumonia-causing bacterium and mice show?
|A)||a biochemical in a killer strain of bacteria can make a non-killing strain deadly|
|B)||a “transforming principle” was protein|
|C)||mice can become immune to pneumonia|
|D)||All of these are correct.|
Avery, MacLeod, and McCarty confirmed the hypothesis that DNA was the genetic material by inoculating mice with ___________.
|A)||heat-killed type R bacterial DNA and live type S bacteria –mice died|
|B)||heat-killed type S bacterial DNA and live type R bacteria –mice lived|
|C)||heat-killed type R bacterial DNA and live type S bacteria –mice lived|
|D)||heat-killed type S bacterial DNA and live type R bacteria –mice died|
The scientist(s) that confirmed that DNA was the hereditary material was (were) ___________.
|A)||Avery, MacLeod, and McCarty|
|D)||Hershey and Chase|
In the experiments of Hershey and Chase, DNA was shown to be the material transmitted from the virus to the bacterium because _____________.
|A)||protein contains sulfur but DNA does not|
|B)||DNA contains phosphorus but protein does not|
|C)||radioactivity came from the phosphorus|
|D)||All of these are correct.|
Which scientist found that DNA contains equal amounts of A and T and equal amounts of C and G?
James Watson and Francis Crick are credited with determining _______________ in 1953.
|A)||the nature of base-pairing in DNA|
|B)||the chemical composition of DNA|
|C)||the three-dimensional structure of DNA|
|D)||DNA is located in the nucleus|
DNA contains ____________.
|A)||ribose, uracil, adenine, cytosine, guanine, phosphate|
|B)||deoxyribose, uracil, adenine, cytosine, guanine, phosphate|
|C)||ribose, thymine, adenine, cytosine, guanine, phosphate|
|D)||deoxyribose, thymine, adenine, cytosine, guanine, phosphate|
What portion of the DNA molecule actually encodes the genetic information?
|A)||DNA base sequences|
|C)||number of hydrogen bonds|
What is a nucleosome?
|A)||a mutation in a base pair|
|B)||a combination of enzymes that regulates gene activity|
|C)||DNA base pairs wrapped around histones|
|D)||an unusual sequence of bases that act as a start position for gene activity|
True or false. Histones are unique to eukaryotes.
The two strands of DNA run opposite to each other. This is termed _____________.
The hypothesis of DNA replication that proposed one strand serves as a template for the replication of a new strand was called ______________.
Enzymes that unwind and hold apart replicating DNA are ___________.
True or false. A replicating chromosome has only one replication fork at a time.
Replication occurs in 5’ to 3’ direction. What is the name of the short pieces of the discontinuous strand?
Gene amplification is a term describing the technique called ____________.
|A)||polymerase chain reaction|
|B)||assisted reproductive technologies|
|C)||recombinant DNA technology|
Polymerase chain reaction can be used in which of the following fields?
|E)||All of these are correct.|
Which of the following nucleotides is particularly sensitive to ultraviolet radiation?
Which mode of DNA repair corrects small loops where complementary strands of DNA are not precisely aligned?