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Worksheetsgenetics
Total questions: 72
Worksheet time: 2hrs 10mins
Name
Class
Date
1.
What observed value would we use to calculate the purple flower's expected value? (Shown above as Y)
a)
705
b)
224
c)
929
d)
1/4
2.
B=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
3.
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%
4.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
5.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
6.
Segment of DNA on a chromosome that contains instructions for protein synthesis and controls a particular inherited trait
a)
Gene
b)
Pedigree
c)
Punnett Square
d)
Dominant
7.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
8.
What gamete possibilities could come from this parent's genotype?
a)
aB, ab, AB, Ab
b)
aB, Ab, AB, AB
c)
AB, aB, AB, Ab
d)
aB, ab, aB, ab
9.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
10.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
a)
0%
b)
25%
c)
50%
d)
100%
11.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
12.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
13.
Cross Two Homozygous plants
(RRYY x rryy).
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
(RRYY x rryy).
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
a)
0%
b)
25%
c)
50%
d)
100%
14.
When neither trait of the parents is fully expressed. Happens with heterozygous combinations. A blending of two traits
a)
Gene Expression
b)
Co-Dominance
c)
Incomplete Dominance
d)
Phenotype
15.
When different traits are crossed and both are expressed in an organism
a)
Co-Dominance
b)
Gene expression
c)
Intermediate Inheritance
d)
Incomplete Dominance
16.
When two or more alleles for a trait exist in a population. Ex: Different hair colors
a)
Polyploidy
b)
Multiple Genes
c)
Multiple Alleles
d)
Polysaccharide
17.
When two or more genes control one single trait.
a)
Multiple Alleles
b)
Several Genes
c)
Polygenetic Traits
d)
Genotype
18.
The physical characteristic that shows up in an organism (what you see)
a)
Phenotype
b)
Genotype
c)
Genes
d)
Homozygous
19.
What is the probability that the offspring of a homozygous dominant individual with a homozygous recessive individual will exhibit the dominant phenotype?
a)
100%
b)
50%
c)
75%
d)
25%
20.
What is the probability that 2 heterozygous parents will produce offspring with the dominant phenotype?
a)
100%
b)
75%
c)
50%
d)
25%
21.
The law of independent assortment describes the fact that..
a)
if an organism is heterozygous they will have the dominant trait
b)
alleles split apart from each other during gamete formation
c)
inheritance of one trait had no effect on the inheritance of another
22.
T = tall an t = short
TT and Tt would result in the following phenotype
TT and Tt would result in the following phenotype
a)
short
b)
tall
c)
medium sized
d)
neither tall or short
23.
If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?
a)
100% Tt
b)
50% Tt, 50% tt
c)
75%Tt, 25%tt
d)
25%TT, 50%Tt, 25%tt
24.
If a messenger RNA codon is UAC, which of the following would be the complementary anticodon triplet in the transfer RNA?
a)
ATG
b)
AUC
c)
AUG
d)
ATT
25.
Which of the following DNA strands would serve as a template for the amino acid sequence shown above?
a)
3'-ATGCGACCAGCACGT-5'
b)
3'- AUGCCACUAGCACGU-5'
c)
3'-TACGGTGATCGTGCA-5'
d)
3'UACCGGUGAUCGUGCA-5'
26.
Which process is used to make mRNA from the DNA in the nucleus?
a)
transcription
b)
translation
c)
replication
27.
Which RNA bases would pair with TACGAA in transcription?
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
28.
Where does transcription take place?
a)
nucleus
b)
cytoplasm
c)
ribosome
29.
Process in which the gene sequence in DNA is copied to a mRNA strand.
a)
DNA replication
b)
Transcription
c)
Translation
d)
Mutation
30.
What is tRNA role during translation?
a)
To bring the amino acids to the ribosome
b)
Positioning the ribosome
c)
Carries the instructions on how to make a protein.
d)
None of the above
31.
Translation occurs at the _______
a)
Nucleus
b)
Smooth ER
c)
Ribosome
d)
None of the above
32.
What type of chromosomal is pictured?
a)
Deletion
b)
Substitution
c)
Inversion
d)
Translocation
33.
What process is shown?
a)
Translation
b)
Transcription
c)
DNA replication
d)
Non-disjunction
34.
Proteins are made of chains of______
a)
Nucleotides
b)
Monosaccharides
c)
amino acids
d)
Fatty acids
35.
A mutation that involves one or a few nucleotide.
a)
Point mutation
b)
Inversion
c)
Translocation
d)
none of the above
36.
Using the table what does the codon CUG code for?
a)
alanine
b)
Proline
c)
Leucine
d)
Methionine
37.
Using the codon identify the amino acid sequence:
AUG-GGC-ACC-UCA-UGA
AUG-GGC-ACC-UCA-UGA
a)
MET-GLU-VAL-TYR-STOP
b)
MET-GLY-THR-SER-STOP
c)
MET-SER-THR-GLY-STOP
d)
MET-LYS-ASN-STOP
38.
Using the codon identify the amino acid sequence:
AUG-CCA-GUA-GGG-UAA
AUG-CCA-GUA-GGG-UAA
a)
MET-HIS-ALA-GLY-STOP
b)
MET-PRO-GLY-VAL-STOP
c)
MET-PRO-VAL-GLY-STOP
d)
MET-THR-SER-ASP-STOP
39.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
40.
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
41.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
42.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
43.
What is the relationship between a protein, the cell, and DNA?
a)
DNA is produced by protein which is produced in the cell
b)
Protein is composed of DNA which is produced in the cell
c)
DNA controls the production of protein in the cell
d)
A cell is composed of DNA and protein
44.
The diagram shows the process of
a)
Transcription
b)
Translation
c)
Replication
d)
Mitosis
45.
In a nucleosome, the DNA is wrapped around
a)
polymerase molecules.
b)
ribosomes.
c)
histones.
d)
a thymine dimer.
46.
Which component is NOT directly involved in translation?
a)
GTP
b)
DNA
c)
tRNA
d)
ribosomes
47.
How many nucleotides code for each amino acid?
a)
1
b)
2
c)
3
d)
64
48.
Transcribe this DNA sequence to mRNA: AAACCGGCC
a)
UUUGGCCGC
b)
TTTGGCGGG
c)
TTTGGCCGG
d)
UUUGGCCGG
49.
What is an exon?
a)
section of mRNA that codes for protein
b)
section of mRNA that does not code for protein
c)
section of tRNA that codes for protein
d)
section of rRNA that codes for protein
50.
Where are anticodons found?
a)
on mRNA
b)
on DNA
c)
on rRNA
d)
on tRNA
51.
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
52.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
53.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
54.
Which enzyme is responsible for adding nucleotides?
a)
Topoisomerase
b)
DNA Polymerase
c)
Ligase
d)
Primase
55.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
56.
This enzyme is capable of breaking Hydrogen bonds found between the bases of DNA
a)
Topoisomerase
b)
DNA Helicase
c)
DNA Polymerase
d)
Exonuclease
57.
Which enzyme seals okazaki fragments together on the lagging strand?
a)
Topoisomerase
b)
Helicase
c)
Polymerase
d)
Ligase
58.
What do we call DNA replication since new DNA has 1 parent strand and 1 new strand?
a)
Conservative
b)
Semiconservative
c)
Dispersive
59.
The separation of the two single strands of DNA creates a ‘Y’ shape?
a)
enzyme
b)
unzip
c)
A replication fork
60.
This enzyme helps helicase unzip DNA by relieving supercoiling
a)
Topoisomerase
b)
Exonuclease
c)
DNA Primase
d)
DNA Polymerase
61.
Which enzyme is responsible for checking DNA for errors, and fixing it?
a)
DNA Polymerase
b)
DNA Primase
c)
DNA Helicase
d)
RNA Polymerase
62.
Okazaki fragments are found on the _______________ strand
a)
Leading
b)
Lagging
63.
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
64.
A child has type O blood, if mother has type A blood, what would the fathers blood type be
a)
A,B, or O
b)
AB or A
c)
AB or B
d)
O only
65.
In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?
a)
complete dominance and recessiveness
b)
co-dominance
c)
incomplete dominance
d)
pleiotropy
66.
If a female was a carrier for sex-linked color blindness, what percentage of her male children would also be color blind?
a)
0%
b)
25%
c)
50%
d)
100%
67.
A man who has a sex-linked allele will pass it on to
a)
all his daughters
b)
all his sons
c)
1/2 of his daughters
d)
1/2 of his sons
68.
Red x white = pink
a)
codominance
b)
multiple alleles
c)
incomplete dominance
d)
epistasis
69.
In peas, the trait for tall plants is dominant (T) and the trait for short plants is recessive (t). The trait for yellow seeds is dominant (Y) and the trait for green seeds is recessive (y).
A cross between two plants results in 292 tall, yellow plants and 103 short, green plants. What are the most likely genotypes of the parents?
A cross between two plants results in 292 tall, yellow plants and 103 short, green plants. What are the most likely genotypes of the parents?
a)
TtYY x Ttyy
b)
TTYy x TTYy
c)
TTyy x TTYy
d)
TtYy x TtYy
70.
A child born with blood type O could have parents with all of the following blood types except...?
a)
A and B
b)
A and O
c)
A and A
d)
AB and O
71.
Which of the following is an example of polygenic inheritance?
a)
pink flowers in snapdragons
b)
The ABO Blood group in humans
c)
Skin color in humans
d)
Huntington's disease in humans
72.
A new species of tulip was recently discovered. A population of pure red tulips was crossed with a population of pure blue tulips. The resulting F1 generation was all purple. This result is an example of which of the following?
a)
Complete dominance
b)
Incomplete dominance
c)
Co-dominance
d)
Linkage
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