WorksheetsDNA Review
Total questions: 22
Worksheet time: 11mins
A point mutation is caused by an insertion or a deletion.
True
False
The only difference between tRNA & DNA is that uracil replaces thymine.
True
False
Molecules of DNA are composed of long chains of
Amino Acids
Monosaccharids
Fatty Acids
Nucleotides
Of the 4 base pairs, which 2 are purines & which 2 are pyrimidines?
Purines: A&T Pyrimidines: U&C
Purines: A&T Pyrimidines: C&G
Purines: A&G Pyrimidines: T&C
Purines: U&T Pyrimidines: G&C
The enzyme that unwinds DNA during replication is
Double Helix
DNA Helicase
Forks
Phages
RNA differs from DNA in that RNA
is double stranded
contains the base uracil
contains deoxyribose
does not contain adenine
During transcription
proteins are made
DNA is replicated
RNA is produced
DNA is destroyed
Each nucleotide triplet in mRNA that specifies a particular amino acid is called
Peptide Bond
Anticodon
Codon
Helicase
A mutation caused by DNA breaking away from a chromosome and reattaching to a different one is called
Deletion
Inversion
Duplication
Translocation
Which part of DNA contains the genetic infromation?
Sugar Molecules
Nitrogen Base Pairs
Phosphate Molecules
Deoxyribose Molecules
Which of these molecules adds in complementary base pairs during DNA replication?
Helicase
DNA Polymerase
RNA Polymerase
Replicator
RNA Polymerase does which of the following
Uses these bases: A, U, C, G
Adds in complementary bases
Creates mRNA
All of these are correct
Mutations are permanent changes to DNA.
True
False
Mutations are caused by which of the following?
Radiation
Chemicals
Infectious Agents
Errors in DNA replication
All of these are correct
Which of the following is NOT part of a nucleotide?
Nitrogenous Base Pair
Amino Acid
Sugar
Phosphate
Which of the following is NOT a Chromosomal Mutation?
Translocation
Inversion
Deletion
Insertion
Which of these is NOT true of Codons?
They have Uracil in place of Thymine
They bind with mRNA
They carry a specific amino acid
They contain 3 letters
All of these are true of codons
Transcription occurs in the ribosome.
True
False
DNA replication, transcription, and translation are always occurring in the body.
True
False
Chromosomes are only contained in the nucleus of prokaryotic cells.
True
False
Mutations always have a very good or a very bad effect.
True
False
Which of the following is NOT true of Frameshift Mutations?
They can be very bad for the cell
They are caused by insertions or deletions
They happen at the chromosomal level
They can result in the wrong protein being produced
