WorksheetsER-Genetics and Protein Synthesis
Total questions: 50
Worksheet time: 13hrs 30mins
Name
Class
Date
1.
Which two processes are involved in protein synthesis?
a)
Replication and Transcription
b)
Replication and Translation
c)
Transcription and Translation
2.
Which of the following molecules is made during transcription?
a)
DNA
b)
tRNA
c)
protein
d)
mRNA
3.
Which of the following bases is found only in RNA?
a)
Adenine
b)
Guanine
c)
Thymine
d)
Uracil
4.
Which form of RNA carries amino acids from the cytoplasm to the ribosome?
a)
amino RNA
b)
ribosomal RNA
c)
transfer RNA
d)
messenger RNA
5.
What are the three base segments of mRNA called?
a)
anticodons
b)
codons
c)
triplets
6.
Transcribe the following sequence of DNA into RNA:
AAG CTT TGC
AAG CTT TGC
a)
TTC GAA ACG
b)
UUC GAA ACG
c)
TTC GUU UCG
d)
UUC GUU UCG
7.
What would be the complementary DNA strand for the following nucleotide sequence?
TCG ATA CGA
TCG ATA CGA
a)
AGC ATA GCT
b)
AGC TAT GCT
c)
AGC UAU GCU
d)
UGC TUT GCT
8.
Proteins are chains of amino acids bonded together. Which is the correct sequence for making proteins?
a)
Information is DNA is transferred into RNA and then made into protein
b)
Information in DNA is formed into protein directly.
c)
Information in RNA mutates into DNA and then is made into protein
d)
Information in RNA uses thermal energy to make protein
9.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
10.
Cytosine always pairs with
a)
Adenine
b)
Thymine
c)
Uracil
d)
Guanine
11.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
12.
In DNA, Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
13.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
14.
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
15.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
16.
The enzyme that unwinds the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
17.
Why does DNA replicate?
a)
To create another copy for the new cell
b)
To create a duplicate copy in case the original gets damaged
c)
To create a new copy to replace the damaged original
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.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
21.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
22.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
23.
What process is going on in this photo?
a)
Transcription
b)
Translation
c)
Replication
d)
All the above
24.
What is the three base sequence of mRNA that codes for a single amino acid?
a)
Anticodon
b)
Codon
c)
Protein
25.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
26.
Which change below would result in a different Amino Acid?
3'-GCT-5'
3'-GCT-5'
a)
GTT
b)
TCT
c)
TCC
d)
GCA
27.
What amino acid is represented by the codon AUG?
a)
Phenylalanine
b)
Methionine
c)
Leucine
d)
Stop codon
28.
If the DNA sequence of a gene is TAC CCC GGA GAG, what mRNA sequence will be produced in transcription?
a)
RNA Polymerase
b)
AUG GGG CCU CUC
c)
ATG GGG GGT GTG
d)
AUG GGG CCU CUG
e)
AUG CCG GCA CGG
29.
What amino acid would be added to the protein being formed during translation if the mRNA codon reads "CCU?"
a)
Isoleucine
b)
Stop
c)
Methionine
d)
Proline
30.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
31.
What is the correct amino acid sequence for the mRNA code AUG GCA AAC CGU
a)
Met-Ala-Asn-Ala
b)
Met-Ala (because the third codon codes for STOP)
c)
Ileu-Ala-Asn-Ala
d)
Met-Ala-Asn-Arg
e)
Ileu-Ala-Asn-Ala
32.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
33.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
34.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
35.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
36.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
37.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
38.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
39.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
40.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
41.
Snapdragon flowers come in red, pink and white. What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
42.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
43.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
44.
Which of the following genotypes is a purebred?
a)
Bb
b)
Gg
c)
bb
d)
Dd
45.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
46.
Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aa
AA x aa
a)
AA
b)
Aa
c)
aa
d)
brown fur
47.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
48.
Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
49.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
50.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
100 %
