DNA, Protein Synthesis & Mutations

30 Questions | By Leilaghboyle | Last updated: Mar 20, 2022 | Total Attempts: 187

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DNA, Protein Synthesis & Mutations - Quiz

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1.

The following diagram represents which of the following selections?
- A.
  
  Purines
- B.
  
  Pyrimidines
- C.
  
  Nucleotide
- D.
  
  Deoxyribose Sugars
2.

The dashed lines between the two bases represents...
- A.
  
  Ionic bonding
- B.
  
  Pyrimidial bonding
- C.
  
  Phosphate-sugar bonds
- D.
  
  Hydrogen bonds
3.

The backbone of the DNA structure is made up of...
- A.
  
  Alternating phosphates and sugar molecules
- B.
  
  Nucleotides
- C.
  
  Alternating bases and sugars
- D.
  
  Alternating phosphates and bases
4.

TRUE or FALSE: DNA is found the nucleus in eukaryotic cells.
- A.
  
  TRUE
- B.
  
  FALSE
5.

What is made during transcription?
- A.
  
  MRNA will make a copy of the DNA
- B.
  
  DNA makes a copy of itself
- C.
  
  TRNA will copy the DNA
6.

If you have a strand of DNA with the bases C C C G G G T T T A T A, what would the mRNA look like?
- A.
  
  G G G C C C A A A T A T
- B.
  
  G G G G G G A A A T U T
- C.
  
  G G G C C C A A A U A U
7.

Where does transcription take place?
- A.
  
  Ribosomes
- B.
  
  Nucleus
- C.
  
  Mitochondria
8.

The least dangerous type of point mutation would be?
- A.
  
  Missense
- B.
  
  Nonsense
- C.
  
  Silent
- D.
  
  Deletion
9.

Initiation of translation in eukaryotes requires which of the following?
- A.
  
  Recognition of Shine Dalgarno sequence
- B.
  
  5' Cap on mRNA
- C.
  
  3' Poly A tail on mRNA
- D.
  
  Initiator tRNA
10.

Translation occurs in the:
- A.
  
  Nucleolus.
- B.
  
  Golgi apparatus.
- C.
  
  Cytoplasm.
- D.
  
  Intercellular space.
- E.
  
  Center of a black hole.
11.

All cells receive a copy of all genes.
- A.
  
  True
- B.
  
  False
12.

Deletions and Substitutions are two types of point mutation. Which type is more likely to cause mistranslations of proteins?
- A.
  
  Substitution because they shift the reading frame and cause downstream amino acids to be changed.
- B.
  
  Deletions, because they shift the reading frame and downstream amino acids to be changed.
- C.
  
  Deletions because one protein is deleted.
- D.
  
  None of the above is correct
13.

A gene is:
- A.
  
  A piece of clothing that is placed upon the bipedal legs of human.
- B.
  
  A chromosome carrier
- C.
  
  A section of DNA that codes for a protein or RNA molecule.
- D.
  
  A regulatory sequence
- E.
  
  An exon
14.

Which of the following is NOT a type of RNA?
- A.
  
  Messenger
- B.
  
  Transcription
- C.
  
  Transfer
- D.
  
  Ribosomal
- E.
  
  These are all types of RNA
15.

Where in the cell would rRNA be found?
- A.
  
  Nucleus
- B.
  
  Ribosomes
- C.
  
  Golgi Apparatus
- D.
  
  Cholorplast
16.

A radioactive isotope of which element would be useful in tagging a molecule of DNA to differentiate it from carbohydrates, lipids, and proteins?
- A.
  
  Sulfur
- B.
  
  Carbon
- C.
  
  Phosphorous
- D.
  
  Nitrogen
17.

According to Chargaff, if an organism’s DNA is 19% thymine, what are the other percentages that account for the other three DNA base pairs?Thymine: 19%Adenine: [blank]%
18.

Several ribosomes can be translating a mRNA at the same time. When seen under the electron microscope, this cluster of ribosomes is called a _______.
19.

According to Chargaff, if an organism’s DNA is 19% thymine, what are the other percentages that account for the other three DNA base pairs?Thymine: 19%Guanine: [blank]%
20.

According to Chargaff, if an organism’s DNA is 19% thymine, what are the other percentages that account for the other three DNA base pairs?Thymine: 19%Cytosine: [blank]%
21.

Classify these things as occurring in prokaryotes, eukaryotes, or both. Single loop of DNA
- A.
  
  Prokaryotes
- B.
  
  Eukaryotes
- C.
  
  Both
22.

Classify these things as occurring in prokaryotes, eukaryotes, or both. Chromosomes wound around histones
- A.
  
  Prokaryotes
- B.
  
  Eukaryotes
- C.
  
  Both
23.

Classify these things as occurring in prokaryotes, eukaryotes, or both. Multiple sites of origin in DNA replication
- A.
  
  Prokaryotes
- B.
  
  Eukaryotes
- C.
  
  Both
24.

Classify these things as occurring in prokaryotes, eukaryotes, or both. RNA is processed after transcription
- A.
  
  Prokaryotes
- B.
  
  Eukaryotes
- C.
  
  Both
25.

Classify these things as occurring in prokaryotes, eukaryotes, or both. Uses DNA polymerase
- A.
  
  Prokaryotes
- B.
  
  Eukaryotes
- C.
  
  Both