Question 1

One strand of DNA is 5'-AGGCCTTA-3'. What is the opposite strand?

Accepted Answer

A)  5'-AGGCCTTA-3' 
B)  5'-TCCGGAAT-3' 
C)  3'-AGGCCTTA-5' 
D)  3'-TCCGGAAT-5' 
A)  5'-AGGCCTTA-3' 
B)  5'-TCCGGAAT-3' 
C)  3'-AGGCCTTA-5' 
D)  3'-TCCGGAAT-5'

Question 2

Which DNA molecule form is a left-handed?

Accepted Answer

A)  B DNA 
B)  Z DNA 
C)  R DNA 
A)  B DNA 
B)  Z DNA 
C)  R DNA

Question 3

In a double-helix DNA strand, the adenine on one strand forms a hydrogen bond with a(n) ________ on the other strand.

Accepted Answer

A)  adenine 
B)  guanine 
C)  thymine 
D)  cytosine 
A)  adenine 
B)  guanine 
C)  thymine 
D)  cytosine

Question 4

A DNA strand can be described as antiparallel but uncomplementary.

Accepted Answer

A) True 
 B)False

Question 5

How does DNA differ from RNA?

Accepted Answer

A)  RNA uses only purines. 
B)  RNA uses a different five-carbon sugar. 
C)  RNA has a contains different sized phosphate groups. 
D)  RNA has multiple bases attached to the sugar. 
A)  RNA uses only purines. 
B)  RNA uses a different five-carbon sugar. 
C)  RNA has a contains different sized phosphate groups. 
D)  RNA has multiple bases attached to the sugar.

Question 6

The helical shape of the DNA contains major and minor grooves, which assist in the regulating of gene expression.

Accepted Answer

A) True 
 B)False

Question 7

These individuals determined that DNA was responsible for the process of transduction in T2 phage.

Accepted Answer

A)  Hershey and Chase 
B)  Avery, Macleod, and McCarty 
C)  Watson and Crick 
D)  Creighton and McClintock 
A)  Hershey and Chase 
B)  Avery, Macleod, and McCarty 
C)  Watson and Crick 
D)  Creighton and McClintock

Question 8

The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by ________.

Accepted Answer

A)  Watson and Crick 
B)  Franklin 
C)  Pauling 
D)  Chargaff 
A)  Watson and Crick 
B)  Franklin 
C)  Pauling 
D)  Chargaff

Question 9

The individuals who determined that Griffith's transforming principle was DNA were ________.

Accepted Answer

A)  Hershey and Chase 
B)  Avery, Macleod, and McCarty 
C)  Watson and Crick 
D)  Creighton and McClintock 
A)  Hershey and Chase 
B)  Avery, Macleod, and McCarty 
C)  Watson and Crick 
D)  Creighton and McClintock

Question 10

According to Chargaff's rule, if the DNA of a species contains 20% adenine, what percent of guanine will it contain?

Accepted Answer

A)  20% 
B)  30% 
C)  50% 
D)  75% 
A)  20% 
B)  30% 
C)  50% 
D)  75%

Question 11

The building blocks of DNA are called ________.

Accepted Answer

A)  amino acids 
B)  codons 
C)  nucleotides 
D)  alleles 
A)  amino acids 
B)  codons 
C)  nucleotides 
D)  alleles

Question 12

What DNA form is most common in living organisms?

Accepted Answer

A)  B DNA 
B)  Z DNA 
C)  Triplex DNA 
A)  B DNA 
B)  Z DNA 
C)  Triplex DNA

Question 13

Frederick Griffith is responsible for discovering what process?

Accepted Answer

A)  Replication 
B)  Transmission 
C)  Transformation 
D)  Transduction 
A)  Replication 
B)  Transmission 
C)  Transformation 
D)  Transduction

Question 14

Adenine and thymine form ________ hydrogen bonds between them, while cytosine and guanine form ________ bonds.

Accepted Answer

A)  2, 3 
B)  3, 4 
C)  3, 2 
D)  4, 3 
A)  2, 3 
B)  3, 4 
C)  3, 2 
D)  4, 3

Question 15

The backbone of the DNA molecule is formed by ________.

Accepted Answer

A)  peptide bonds 
B)  ribose sugars 
C)  nitrogenous bases 
D)  phosphodiester bonds 
A)  peptide bonds 
B)  ribose sugars 
C)  nitrogenous bases 
D)  phosphodiester bonds

Question 16

The first group of researchers to correctly identify the double-helix structure of DNA were ________.

Accepted Answer

A)  McClintock and Franklin 
B)  Hershey and Chase 
C)  Pauling and Avery 
D)  Watson and Crick 
A)  McClintock and Franklin 
B)  Hershey and Chase 
C)  Pauling and Avery 
D)  Watson and Crick

Question 17

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

Accepted Answer

A) True 
 B)False

Question 18

The individual(s) who used ball and stick models to identify the three-dimensional structure of proteins was ________.

Accepted Answer

A)  Franklin 
B)  Watson and Crick 
C)  Hershey and Chase 
D)  Pauling 
E)  Chargaff 
A)  Franklin 
B)  Watson and Crick 
C)  Hershey and Chase 
D)  Pauling 
E)  Chargaff

Question 19

How many bases are necessary to complete three complete twists (1080 degrees) of a DNA helix?

Accepted Answer

A)  5 
B)  10 
C)  30 
D)  60 
A)  5 
B)  10 
C)  30 
D)  60

Question 20

Select the DNA strand that would form a triple helix with the following double helix. 5'-CTACTTAGAAGGGGAAATACG-3'
3'-GATGAATCTTCCCCTTTACGC-5'

Accepted Answer

A)  3'-TTTCCCCTTCT-5' 
B)  5'-TTTCCCCTTCT-3' 
C)  3'-AAAGGGGAAGA-5' 
D)  5'-AAAGGGGAAGA-3' 
A)  3'-TTTCCCCTTCT-5' 
B)  5'-TTTCCCCTTCT-3' 
C)  3'-AAAGGGGAAGA-5' 
D)  5'-AAAGGGGAAGA-3'

Exam 9: Molecular Structure of Dna and Rna

One strand of DNA is 5'-AGGCCTTA-3'. What is the opposite strand?

Which DNA molecule form is a left-handed?

In a double-helix DNA strand, the adenine on one strand forms a hydrogen bond with a(n) ________ on the other strand.

A DNA strand can be described as antiparallel but uncomplementary.

How does DNA differ from RNA?

The helical shape of the DNA contains major and minor grooves, which assist in the regulating of gene expression.

These individuals determined that DNA was responsible for the process of transduction in T2 phage.

The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by ________.

The individuals who determined that Griffith's transforming principle was DNA were ________.

According to Chargaff's rule, if the DNA of a species contains 20% adenine, what percent of guanine will it contain?

The building blocks of DNA are called ________.

What DNA form is most common in living organisms?

Frederick Griffith is responsible for discovering what process?

Adenine and thymine form ________ hydrogen bonds between them, while cytosine and guanine form ________ bonds.

The backbone of the DNA molecule is formed by ________.

The first group of researchers to correctly identify the double-helix structure of DNA were ________.

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

The individual(s) who used ball and stick models to identify the three-dimensional structure of proteins was ________.

How many bases are necessary to complete three complete twists (1080 degrees) of a DNA helix?

Select the DNA strand that would form a triple helix with the following double helix. 5'-CTACTTAGAAGGGGAAATACG-3' 3'-GATGAATCTTCCCCTTTACGC-5'

Overview of Genetics

Mendelian Inheritance

Chromosome Transmission During Cell Division and Sexual Reproduction

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria

Variation in Chromosome Structure and Number

Chromosome Organization and Molecular Structure

Dna Replication

Gene Transcription and Rna Modification

Translation of Mrna

Gene Regulation in Bacteria

Gene Regulation in Eukaryotes I: Transcriptional and Translation Regulation

Gene Regulation in Eukaryotes Ii: Epigenetics

Non-Coding Rnas

Genetics of Viruses

Gene Mutation and Dna Repair

Recombination, Immunogenetics, and Transposition

Molecular Technologies

Biotechnology

Genomics I: Analysis of Dna

Genomics Ii: Functional Genomics, Proteomics, and Bioinformatics

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Complex and Quantitative Traits

Evolutionary Genetics

Filters

Adenine and thymine form hydrogen bonds between them, while cytosine and guanine form bonds.