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WorksheetsDNA and RNA Test Review
Total questions: 43
Worksheet time: 22mins
During the formation of new strands of DNA, this enzyme adds new nucleotides to the growing strand.
DNA polymerase
RNA polymerase
ligase
helicase
Name given a triplet of nucleotides.
codon
anti-codon
point
transcription
Small subunits that compose molecules of DNA and RNA. Building blocks.
nucleotides
amino acids
saccharides
codons
According to the base pair rule A always pairs with?
T
G
C
W
Type of sugar found in DNA?
deoxyribose
ribose
sucrose
lactose
The process of forming a strand of RNA from a DNA template.
transcription
translation
protein synthesis
replication
The process by which a cell copies its DNA.
replication
translation
transcription
protein synthesis
The process of converting the base sequence of mRNA into the amino acid sequence of a protein.
translation
transcription
replication
codon
The enzyme required for transcription?
RNA polymerase
DNA polymerase
helicase
ligase
What are the building blocks of proteins?
amino acids
saccharides
nucleotides
fatty acids
Which nitrogen base is found in RNA, but not in DNA?
uracil
thymine
adenine
guanine
A growing chain of amino acids that is not yet a complete, functional protein.
polypeptide
nucleotide
amino acid
codon
What term us used to describe the spiraling, two sided shape of the DNA molecule?
double helix
codon
single helix
triple helix
What are the names of the scientists that built the first model show the structure of the DNA molecule?
Watson and Crick
Franklin and Chargaff
Chargaff and Crick
Franklin and Watson
If 20% of the nitrogen bases in a sample of DNA are guanine, what percentage of the bases will be adenine?
30%
40%
60%
10%
The sequence of bases on a DNA molecule that indicates the beginning of a gene.
promoter
terminator
start codon
stop codon
The sequence of bases on a DNA molecule that indicates the end of a gene.
terminator
promoter
start codon
stop codon
The sequence of bases on mRNA that indicates the beginning of the protein building process.
start codon
stop codon
promoter
terminator
The sequence of bases on mRNA that indicates the end of the protein building process.
stop codon
start codon
promoter
terminator
The first codon (AUG) on every mRNA calls for which amino acid?
methionine (Met)
aspartic acid (Asp)
glycine (Gly)
Isoleucine (Ile)
The amino acid that becomes attached to a molecule of transfer RNA is specified by a?
anticodon
ribosome
codon
nucleotide
The site in the cell where transcription takes place?
nucleus
ribosome
rough ER
golgi apparatus
The site in the cell where protein synthesis occurs?
ribosome
nucleus
rough ER
golgi apparatus
If a DNA strand had the sequence ACG TAG CTA, the DNA strand complimentary to it would be?
TGC ATC GAT
TGC CTA TAG
TGC AUC CAU
UGC AUC GAU
The sequence of the DNA "backbone" is:
sugar:phosphate
phosphate:base
base:sugar
base:sugar:phosphate
Which one of the following is not a component of a nucleotide?
DNA polymerase
sugar
phosphate
nitrogen base
What is the function of DNA in cells?
stores the information that directs the ribosomes in protein synthesis
serves as a filer material to keep the nucleus from collapsing
storage area for carbohydrates and other macromolecules
storage area for unused nucleotides
DNA sequence: TAC CCG GAT TCA
The last codon in the mRNA will be?
AGU
AGT
UGA
UCA
DNA sequence: TAC CCG GAT TCA
The anticodon of the tRNA which carries the last amino acid will be?
UCA
TCA
AGU
ATC
DNA sequence: TAC CCG GAT TCA
The amino acid being called for by the second codon is?
glycine (Gly)
serine (Ser)
valine (Val)
apsparagine (Asn
Which one of the following is directly involved in transcription?
mRNA
amino acids
ribosomal subunits
DNA polymerase
All of the following are directly involved in the making of proteins except:
RNA polymerase
mRNA
ribosome
amino acids
If a tRNA molecule is transferring glutamic acid and has the anticodon CUU, with what codon on mRNA will it pair with?
GAA
GTT
TUG
CAA
The genetic code has a four letter "alphabet" that codes for?
20 amino acids
16 codons
16 anticodons
64 amino acids
What amino acid is coded for by the mRNA codon AUC?
isoleucine (Ile)
glutamine (Glu)
arginine (Arg)
Leucine (Leu)
What is the mRNA codon for a ATG DNA sequence?
UAC
TAC
UUC
TTG
What are the three stop codons?
UAA, UAG, UGA
UUA, UAG, UGA
AAA, UUG, UGA
UUA, UUG, TGA
Changes in the genetic material of a cell.
mutation
replication
transcription
translation
Mutations that change just one base pair of a gene.
point
insertion
deletion
frameshift
The addition or deletion of a base will result in codon still being read 3 bases at a time, altering the reading of the entire rest of the mRNA.
frameshift mutation
silent mutation
point mutation
base pair substitution
Differences between DNA and RNA.
RNA:
single stranded
ribose
U
RNA:
single stranded
deoxyribose
U
RNA:
double stranded
ribose
U
RNA:
single stranded
ribose
T
DNA nucleotide.
phosphate:deoxyribose:nitrogen bases (A,T,C,G)
phosphate:ribose:nitrogen bases (A,T,C,G)
phosphate:deoxyriose: nitrogen bases (A,U,C,G)
phosphate:ribose:nitrogen bases (A,U,C,G)
Genes must be capable of?
carrying information:producing traits:replication every time cell divides
carrying information:producing traits:proten synthesis
carrying information:producing proteins:riplication every time a cell divides
DNA replication:transcription:translation
