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WorksheetsGenetics - Final Exam Review by Schott
Total questions: 79
Worksheet time: 2hrs 11mins
Name
Class
Date
1.
What characteristic would a child NOT inherit from parents?
a)
freckles
b)
eye color
c)
hair style
d)
dimples
2.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
3.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
4.
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%
5.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
6.
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
7.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
8.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
9.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
10.
Who is considered the "father of genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Justin Bieber
11.
The scientific study of heredity is ____.
a)
Genetics
b)
Punnett squares
c)
Inheritance
d)
Biology
12.
If one stronger trait "covers" up another weaker trait, the trait that covers the other is said to be:
a)
Dominant
b)
Heterozygous
c)
Recessive
d)
Hidden
13.
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
14.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
15.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
16.
What determines gender in humans?
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
17.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
18.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
19.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
20.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
21.
What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
22.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
23.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
24.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
25.
If the dominant allele (B) represents brown hair and the recessive allele (b) represents blonde hair, which offspring represents a homozygous recessive genotype?
a)
BB
b)
Bb
c)
blonde
d)
bb
26.
The inheritance pattern that allows are only one trait to show is called _______________ _______________.
a)
complete dominance
b)
co-dominance
c)
incomplete dominance
d)
dominant trait
27.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
28.
In Mendel's P generation, a true-breeding tall plant was crossed with a true-breeding short plant. Short plants reappeared in the F2 generation because
a)
the allele for tallness is dominant
b)
they inherited an allele for shortness and tallness from each parent
c)
the allele for shortness is recessive
d)
the allele for shortness and the allele for tallness segregated when the F1 plants made gametes
29.
Punnett squares show all of the following except
a)
the actual results of a cross
b)
all possible genotypes of the offspring
c)
the alleles in the gametes of each parent
d)
all possible phenotypes of the offspring
30.
Freckles (F) are dominant over nonfreckles. What is the phenotype of individual #3
a)
Ff
b)
ff
c)
freckles
d)
nonfreckles
31.
Snap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?
a)
Red
b)
Red and White
c)
White
d)
Pink
32.
Two heterozygous parents produce offspring. What is the probability of the HETEROZYGOUS GENOTYPE appearing in the offspring generation?
a)
75%
b)
25%
c)
50%
d)
100%
33.
Two heterozygous parents produce offspring. What is the probability of the HOMOZYGOUS DOMINANT GENOTYPE appearing in the offspring generation?
a)
75%
b)
25%
c)
50%
d)
100%
34.
A ________________________ is a tool used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
35.
What are the possible genotypes for this cross?
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
36.
The dominant trait as seen in this punnett square is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
37.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
38.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
39.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
40.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
41.
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
42.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
43.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
44.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
45.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
46.
What nitrogen base is in DNA but NOT RNA?
a)
uracil
b)
thymine
c)
guanine
d)
adenine
47.
What is the function of mRNA?
a)
provide energy for the duplication of cells
b)
stores food material for keeping cells alive
c)
preventing mutations
d)
carrying the gentic message
48.
Where are the proteins made?
a)
DNA
b)
nucleus
c)
ribosome
d)
mitochondria
49.
Carries the genetic code to the ribosome
a)
mRNA
b)
tRNA
c)
rRNA
d)
DNA
50.
Amino acids are joined together in order to form
a)
DNA
b)
ribosomes
c)
proteins
d)
RNA
51.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
52.
The process by which a DNA molecule is copied is called _____.
a)
binary fission
b)
mitosis
c)
replication
d)
translation
53.
One difference between DNA and RNA is that RNA....
a)
is double stranded
b)
contains the base Thymine
c)
contains the base Uracil
d)
contained the base Guanine
54.
Contains the bases adenine, uracil, cytosine and guanine
a)
DNA
b)
RNA
c)
Both
55.
Carries the genetic code to the ribosome
a)
mRNA
b)
tRNA
c)
rRNA
d)
DNA
56.
The molecule that transports the amino acid to the ribosome is called the
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
57.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
58.
A chart or family tree that tracks which members of a family have a particular trait or disease.
a)
Carrier
b)
Karyotype
c)
Pedigree
d)
Genome
59.
The transfer of a gene from the DNA of one organism into another organism in order to produce an organism with desired traits.
a)
Genetic Engineering
b)
Karyotype
c)
Pedigree
d)
Genome
60.
A picture of all the chromosomes in a cell arranged in pairs
a)
Pedigree
b)
Karyotype
c)
Genome
d)
Carrier
61.
An organism that is genetically identical to the organism from which it was produced.
a)
Clone
b)
Carrier
c)
Hybridization
d)
Selective Breeding
62.
ALL the DNA in one cell of an organism
a)
Karyotype
b)
Mutation
c)
Pedigree
d)
Genome
63.
The insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder.
a)
Karyotype
b)
Gene Therapy
c)
Mutation
d)
Multiple Alleles
64.
A selective breeding technique where two genetically Different individuals are crossed.
a)
Hybridization
b)
Inbreeding
c)
Mutation
d)
Gene Therapy
65.
A selective breeding technique where two individuals with similar sets of alleles are crossed.
a)
Clone
b)
Inbreeding
c)
Karyotype
d)
Hybridization
66.
Three or more forms of a gene that code for a single trait...
a)
Multiple alleles
b)
Single Alleles
c)
Sex-Linked Gene
67.
A gene that is carried on the X or Y chromosome
a)
Sex-linked Genes
b)
Sex Chromosomes
c)
Genome
d)
Genie
68.
A person who has one dominant and one recessive allele for a trait, but does not have the trait.
a)
Clone
b)
Carrier
c)
Diseased
d)
Karyotype
69.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
70.
Which gender is TYPICALLY affected by sex-linked disorders?
a)
Men
b)
Women
71.
Disorder when blood cells are misshapen, resulting in a decrease of oxygen and caused by a defective allele for a polypeptide in hemoglobin
a)
Duschenne's muscular dystrophy
b)
Turner's Syndrome
c)
sickle cell anemia
d)
Down Syndrome
72.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
73.
Down Syndrome most often occurs when chromosomes fail to separate properly during meiosis?
a)
True
b)
False
74.
Other disorders are caused by changes in the overall structure or number of what?
a)
Alleles
b)
Genes
c)
Chromosomes
75.
Some genetic disorders are caused by what?
a)
alleles
b)
Mutations in the DNA of genes
c)
Phenotype
d)
Genotype
76.
The entire collection of genes within human cells is referred to as the ______.
a)
human genome
b)
karyotype
c)
pedigree
d)
gene map
77.
A scientist cloned a goat. Which of these is a true statement about the cloned goat?
a)
It has new genes and traits
b)
It lacks the genes for reproduction
c)
It has the genes that are identical to the original goat
d)
It looks the same but has different genes.
78.
The purpose of selective breeding is to
a)
Get bigger animals
b)
get smaller animals
c)
create animals with desirable traits
d)
create animals with bad traits
79.
To study or not to study...that is the question!
a)
Study
b)
Not
Reset
