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WorksheetsDNA Replication and Protein Synthesis
Total questions: 35
Worksheet time: 34mins
Name
Class
Date
1.
What is the monomer (building block) of proteins?
a)
Monosacchrides
b)
Polysaccharides
c)
amino acids
d)
Triglycerides
2.
Where is DNA in a eukaryotic cell?
a)
Cytoplasm
b)
Cell membrane
c)
Nucleus
d)
Golgi
3.
What's important about hydrogen bonds?
a)
They are strong to hold the DNA together
b)
They are weak and easy to open
c)
They are triple bonds
d)
They are double bonds
4.
Which is a difference between DNA and RNA
a)
RNA is double stranded
b)
RNA is not made of nucleotides
c)
RNA contains Uracil instead of Thymine
d)
RNA does not contain a sugar
5.
In order for DNA instructions to move from the nucleus to the ribosomes in the cytoplasm of a cell, an RNA copy of a DNA strand must be made. This process, which takes place in the cell nucleus, is called
a)
translation
b)
mutation
c)
DNA replication
d)
transcription
6.
Transcription is the process where
a)
DNA is replicated
b)
DNA is copied into mRNA
c)
DNA is copied in tRNA
d)
DNA is copied
7.
What is occurring in this picture?
a)
Translation
b)
DNA Replication
c)
Polymerase is unzipping the DNA
d)
Transcription
8.
Amino acids are joined together in order to form
a)
DNA
b)
ribosomes
c)
proteins
d)
RNA
9.
tRNA is involved in
a)
carrying amino acids
b)
carrying ribosomes
c)
carrying glucose
d)
carrying lipids
10.
The DNA sequence ATCAGCGCTGGC is part of a gene. how many amino acids are coded for by this message?
a)
4
b)
8
c)
12
d)
20
11.
What is the name of 3 bases on mRNA called?
a)
gene
b)
triplet
c)
codon
d)
anticodon
12.
Codons contain ______ bases
a)
1
b)
3
c)
6
d)
9
13.
which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
14.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
15.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
16.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
17.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
deoxyribose and the nucleus
d)
deoxyribose and phosphate
18.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
19.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
20.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
21.
The process by which a DNA molecule is copied is called _____.
a)
binary fission
b)
mitosis
c)
replication
d)
translation
22.
Translation takes place in the
a)
ribosome
b)
chloroplast
c)
nucleus
d)
mitochondria
23.
The codon read using the genetic code to determine the amino acid is found in
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
24.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
25.
What amino acid is represented by the codon CAG?
a)
Aspartic Acid
b)
Histidine
c)
Glutamine
d)
Methionine
26.
What would be the tRNA anticodon for the mRNA codon CAG?
a)
GTC
b)
GUC
c)
CUG
d)
CAG
27.
A change in one of the nucleotides of DNA results in
a)
translation
b)
mutation
c)
transcription
d)
replication
28.
What type of mutation is represented in the second strand of DNA?
TACGGCACT
TACGGAACT
TACGGCACT
TACGGAACT
a)
Deletion
b)
Insertion
c)
Substitution
d)
No mutation
29.
What type of mutation is represented in the second strand of DNA?
TACGGCACT
TACGGACT
TACGGCACT
TACGGACT
a)
Deletion
b)
Insertion
c)
Substitution
d)
No mutation
30.
What type of mutation is represented in the second strand of DNA?
TACGGCACT
TACGGCCACT
TACGGCACT
TACGGCCACT
a)
Deletion
b)
Insertion
c)
Substitution
d)
No mutation
31.
What scientist(s) used bacteriophage viruses to finally determine that DNA, not protein, was the "blueprint of life"
a)
Avery
b)
Watson and Crick
c)
Griffith
d)
Hershey and Chase
32.
This scientist used X-ray crystallography to help determine the shape of the DNA molecule
a)
Meischer
b)
Franklin
c)
Avery
d)
Pauling
33.
The "t" in tRNA stands for
a)
taxi
b)
true
c)
transfer
d)
third
34.
Mutations are
a)
always harmful
b)
always beneficial
c)
always neutral
d)
either harmful, beneficial for neutral
35.
Before the mRNA transcript goes to a ribosome the _______ are removed.
a)
mutations
b)
introns
c)
exons
d)
emoticons
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