WorksheetsDNA to Proteins Review
Total questions: 25
Worksheet time: 39mins
One side of DNA is complementary to the other. What does this mean?
It means the two strands are identical.
It means the two strands are mirror images.
It means the bases on one strand pair with specific bases on the other strand.
It means the two strands are unrelated.
If one strand of DNA has the following base sequence, what are the bases on the opposite strand? C C G A A T C G A
G G C T T A G C T
G G C T T A G C A
C C G A A T C G T
T T G C C T A G C
Where is the genetic code contained in the DNA molecule?
In the sugar-phosphate backbone
In the sequence of nitrogenous bases
In the hydrogen bonds between strands
In the double helix structure
If you know that the genome of an organism contains 20% Adenine, what is the proportion of Thymine in its genome?
20%
30%
40%
60%
What is the purpose of DNA replication?
To repair damaged DNA
To produce identical copies of DNA for cell division
To create genetic diversity
To synthesize proteins
What are the DNA molecules produced during replication like compared to the original molecule?
Identical to the original molecule
Completely different from the original molecule
Half identical and half different
Only the sequence is identical
Describe the main ways that RNA is different from DNA.
RNA contains ribose sugar, while DNA contains deoxyribose sugar.
RNA is double-stranded, while DNA is single-stranded.
RNA contains thymine, while DNA contains uracil.
RNA is more stable than DNA.
What is the role of mRNA in protein synthesis?
mRNA carries the genetic code from DNA to the ribosome for protein synthesis.
mRNA is responsible for the replication of DNA.
mRNA transports amino acids to the ribosome.
mRNA forms the structure of ribosomes.
What is the amino acid sequence coded for by the DNA triplets below? TAC AAA GAT CGC ATT
Methionine-Phenylalamine-Leucine-Arginine-Stop
Methionine-Lysine-Glutamic Acid-Arginine-Stop
Methionine-Lysine-Aspartic Acid-Alanine-Stop
Methionine-Lysine-Glutamic Acid-Alanine-Stop
Which type of mutation results in a premature stop codon?
Silent
Missense
Nonsense
Frameshift
Nondisjunction
What is the function of tRNA during protein synthesis?
tRNA carries the genetic code from DNA to the ribosome.
tRNA transcribes DNA into mRNA.
tRNA carries amino acids to the ribosome for protein assembly.
tRNA forms the structure of ribosomes.
Which enzyme is responsible for unwinding the DNA double helix during replication?
DNA polymerase
Primase
Helicase
Ligase
What is the complementary RNA sequence for the DNA strand G C T A A T?
C G A T T A
C G U A A U
G C T A A T
G C U A A U
Which enzyme is responsible for DNA replication?
DNA polymerase
Amylase
Lipase
RNA polymerase
What is the function of RNA in protein synthesis?
RNA helps in the replication of DNA.
RNA is responsible for storing genetic information.
RNA carries the genetic information from DNA to the ribosomes for protein synthesis.
RNA is involved in cell division.
RNA is double-stranded.
true
false
it depends on the type
What is the process that makes a complementary mRNA strand from a DNA strand?
protein synthesis
transcription
translation
DNA Polymerase
Using this DNA sequence ATA CGA GGA TTT, what is the complementary RNA sequence will be
UAU GCU CCU AAA
UAU GCU CCU TTT
TAT GCT CCT AAA
TAT GCT CCT TTT
Mitochondria : ATP
After transcription mRNA goes from the nucleus to the _________.
Ribosome
Mitochondria
Endoplasmic Reticulum
Vacuoles
Which Nucleic Acids can be found in the nucleus?
DNA only
DNA & RNA
RNA only
enzymes only
