Molecular Genetics Quiz


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Which sequence of DNA bases would pair with this partial strand

ATG TGA CAG
_
A. ATG TGA CAG

B. TAC ACT GTC

C. GTA AGT GAC

D. CAT TCA CTG


HISTORY: Discovered that A and T bond together and C and G bond together…

A. Watson and Crick

B. Rosalind Franklin

C. Fredrick Griffeth

D. Erwin Chargaff


The process of using an mRNA to make a protein is called

A. Replication

B. Transcription

C. Translation

D. Cell Division


The synthesis of a new strand of DNA …

A. starts at an operator sequence.

B. involves DNA ligase.

C. is always in fragments.

D. occurs from the 5′ end to the 3′ end.


Since most amino acids are encoded for by more than one codon, the genetic code is said to be …

A. semi-conservative

B. a triplet code

C. universal

D. redundant


HISTORY: Took the X-Ray crystallography photographs that revealed that DNA is a Double Helix

A. Rosalind Franklin

B. Linnus Pauling

C. Fredrick Griffeth

D. Martha Chase


Which of the following is a palindromic sequence?

A. GGCCCG

B. AATGGC

C. AACGTT

D. CCUTGG


Adenine bonds with ______________.

A. Guanine

B. Thymine

C. Cytosine

D. Adenine


A codon is to mRNA as an anti-codon is to …

A. DNA

B. an amino acid

C. rRNA

D. tRNA


ATTTGAGCC- Original
ATTGAGCC – Mutated
The example above is an example of a

A. Insertion- Frameshift

B. Deletion- Substitution

C. Deletion -Frameshift

D. All of the above


This is

A. tRNA

B. mRNA

C. DNA

D. a ribosome


STRUCTURE: What Nitrogenous Base does RNA contain that DNA does not?

A. Thymine

B. Uracil

C. Adenine

D. Love


Meselsohn and Stahl’s experiment showed that…

A. DNA is the hereditary material

B. one gene leads to one protein

C. DNA replication is semiconservative

D. the nucleus contains DNA


A type of substitution in which no  amino acids change is called 

A. Missense

B. Nonsense

C. Silent

D. Deletion


Transcription takes place in the 

A. cytoplasm

B. chloroplast

C. nucleus

D. mitochondria


A small circular piece of DNA found in bacteria are called …

A. recombinants

B. vectors

C. plasmids

D. prokaryotes


HISTORY: Performed an experiment with Bacteriophage viruses that proved DNA was the genetic material

A. Maurice Wilkens and Rosalind Franklin

B. James Watson and Francis Crick

C. Alfred Hershey and Martha Chase

D. Peanut butter and Jelly


The two strands in a DNA molecule are held together by …

A. hydrogen bonds

B. phosphodiester bonds

C. covalent bonds

D. ionic bonds


The process of making an mRNA strand from a DNA template is called

A. Replication

B. Transcription

C. Translation

D. Protein Synthesis


Any change in the sequence of DNA is…

A. transgenic shift

B. Single Genotype

C. Monohybrid Trait

D. Mutation


What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A

A. Substitution

B. Deletion

C. Insertion

D. Frameshift


A mutation leading to an early ‘stop’ codon is a …

A. frameshift mutation

B. silent mutation

C. missense mutation

D. nonsense mutation


In gel electrophoresis ….

A.  15N is needed to weigh down the DNA samples

B. DNA molecules move towards the negative pole

C. larger molecules travel faster

D. smaller DNA fragments travel faster


The replication of DNA is…

A. conservative

B. dispersive

C. semi-conservative

D. random


STRUCTURE: Which 2 molecules form the sides of the DNA ladder?

A. deoxyribose and adenine

B. deoxyribose and a hydrogen bond

C. sugar and the nucleus

D. deoxyribose (sugar) and phosphate




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