chapter 3

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Cytosine, uracil, and thymine are derivatives of A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

D

Nucleic acids are composed of nucleotides that are linked by linkages. A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

B

Organisms composed of cells with two sets of chromosomes are called organisms. A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

A

Eukaryotic genes often contain regions that are transcribed and later excised from the RNA, called . A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

E Signup and view all the answers

Experiments by Avery and colleagues proved that DNA was the substance that a non-pathogenic pneumococcus strain into a virulent strain. A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

G Signup and view all the answers

The method that Sanger developed for DNA sequencing using dideoxy nucleotides is called the method. A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

K Signup and view all the answers

Plasmids are small, circular DNA molecules that are used in
A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

F Signup and view all the answers

Certain plasmids contain genes that confer resistance to A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

I Signup and view all the answers

A small fragment of labeled DNA or RNA used in a hybridization experiment is called a A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

C Signup and view all the answers

After hybridization, the fragment of interest can be detected by A) diploid B) phosphodiester C) probe D) pyrimidine E) introns F) cloning G)transformed H) exons I) ampicillin J) autoradiography K) chain-terminator L) purine M) ester

J Signup and view all the answers

Nucleotides play a central role in living organisms because

all of the above Signup and view all the answers

Which of the following statements about nucleotides is false?

Nucleotides store genetic information. Signup and view all the answers

What group is attached to the pyrimidine ring in thymine and is not present in uracil?

) —CH3 Signup and view all the answers

Nucleotides contain one or more phosphate groups that are usually attached to the:

C3 or C5 atoms Signup and view all the answers

‘AMP’ is used to refer to

adenylic acid. Signup and view all the answers

Inside our cells, free nucleotides are almost always associated with

Mg2+ counterions Signup and view all the answers

Humans typically recycle approximately of ATP each day.

50 kg Signup and view all the answers

Nucleoside triphosphates are useful for energy transfer because the phosphoanhydride bonds are relatively .

high energy Signup and view all the answers

Nucleoside triphosphates carry energy in the form of

phosphoanhydride bonds Signup and view all the answers

The major carrier of energy in the cell is:

adenosine triphosphate Signup and view all the answers

Which of the following nucleotides contain energy rich bonds?

All of above Signup and view all the answers

Which of the following molecules does not contain an energy rich phosphoanhydride bond?

AMP Signup and view all the answers

By convention, the sequence of nucleotide residues in a nucleic acid is written starting with the end.

left to right; 5 Signup and view all the answers

Chargaff’s rules state that:

In DNA the number of adenine residues is identical to the number of thymine residues and the number of guanine residues is identical to the number of cytosine residues. Signup and view all the answers

The Watson and Crick model of a double-helical structure for DNA was based, in part, on evidence from

X-ray diffraction . Signup and view all the answers

Knowledge about the tautomeric forms of the bases of nucleic acids is needed

to understand H-bonding between the complementary bases Signup and view all the answers

Nucleotides in a DNA molecule are linked together through

phosphodiester bonds. Signup and view all the answers

A double stranded DNA fragment contains 12% adenine residues. Calculate the percentage cytosine residues.

38% Signup and view all the answers

RNA occurs primarily as single stranded molecules that can give rise to structures.

stem-loop Signup and view all the answers

In 1944 Avery, MacLeod, and McCarty did experiments with Diplococcus pneumoniae that proved that

DNA can permanently transform a non-pathogenic strain into a pathogenic strain. Signup and view all the answers

In living organisms, genetic information is most often stored in the form of

deoxyribonucleic acid. Signup and view all the answers

It is impossible for RNA to store genetic information, because

None of the above answers is correct; RNA can store genetic information. Signup and view all the answers

Genomic DNA is , resulting in the production of

transcribed; mRNA Signup and view all the answers