WorksheetsGenetics Test Review
Total questions: 45
Worksheet time: 32mins
Who is the Father of Genetics?
Gregor Mendel
Albert Einstein
Rosalind Franklin
Henrietta Lacks
Which of the following are Dominant alleles?
T
Z
m
J
A cross between two Heterozygous Parents results in what Genotype Ratio?
1:1
1:2
2:2
1:2:1
In a cross between a Homozygous Dominant and Homozygous Recessive organism, what are the chances of having a Homozygous Dominant offspring?
0%
25%
50%
75%
A _________ allele is shown by using a capital letter.
Dominant
Recessive
Homozygous
Allele
Which of the following are genotypes?
White Hair
Tall
Ee
BB
What is the physical appearance of an organism?
Genotype
Genetics
Phenotype
Physical Education
Which of the following terms can be used to describe an organisms Genotype? Choose 3
Homozygous Dominant
Homozygous Recessive
Heterozygous
Heterozygous Dominant
Using the letter (A) for the allele, write a gene that is Homozygous Recessive.
aa
AA
Aa
a
What is the difference between Genotype and Phenotype?
They are the same
Genotype is genetic make up, Phenotype is physical appearance
Genotype are individual alleles, Phenotype is the gene
Genotype is physical appearance, Phenotype is genetic makeup
Using the letter (T), show a Heterozygous gene
Tt
TT
tt
T
What is a monohybrid cross?
A cross between 2 genes
A cross between 3 genes
A Punnett Square
A cross examining 1 specific gene
What do Punnett Squares tell us?
What the parents look like
A summary of a family pedigree
The probability of traits an offspring could have
A mixture of all the traits an offspring will have
In a cross between 2 Heterozygous individuals, what is the probability of having a Homozygous Recessive OR Dominant offspring?
0%
25%
50%
75%
In a cross between a Homozygous Recessive and a Heterozygous individual, what are the chances of having a Homozygous Dominant offspring?
80%
40%
0%
25%
In a cross between two Homozygous Dominant individuals, what are the chances of having a Heterozygous offspring?
0%
10%
40%
90%
In a monohybrid cross, what percentage does each box in the Punnett Square equal?
10%
25%
40%
80%
Using the letter (R), show a Homozygous Dominant individual.
RR
rr
Rr
R
Which of the following is an allele?
W
Ww
ww
WW
For a gene made of alleles Tt, identify the recessive allele.
T
t
Tt
tt
In the gene made of alleles PP, identify the recessive allele
P
p
Pp
There isn't one
In the gene made of alleles Ll, identify the dominant allele.
There isn't one.
Ll
l
L
A cross between individuals Tt and TT has a genotype ratio of 50% TT and 50% Tt, what is the phenotype ratio?
4:0
2:2
3:1
0:4
In a cross between individuals Ll and Ll, the genotypes are 25% LL, 50% Ll, and 25% ll, how many different phenotypes will there be?
1
2
3
0
In a Punnett Square, what do the inner boxes tell you?
Parent 1 genotype
Parent 2 genotype
The probability of offspring genotype and phenotype
The probability of Parent 1 and 2 genotype and phenotype
What is the phenotype ratio of the following Punnett Square?
3:1
4:0
4:0:0
0:4:0
What is the genotype ratio of the following Punnett Square?
1:2:1
2:2:0
4:0:0
0:4:0
What are the parent genotypes?
Rr x Rr
RR x RR
rr x rr
RR x rr
What is the phenotype ratio for the following Punnett Square?
2:2
3:1
0:4
4:0
What is the genotype ratio for the following Punnett Square?
0:2:2
1:2:2
3:1:0
0:4:0
What does a phenotype ratio tell you?
The ratio of dominant to recessive possibilities
The ratio of genotypes
How many offspring will have a trait
How many children parents will have
What is the genotype ratio for the following Punnett Square?
0:4:0
4:0:0
1:2:1
2:2:0
What is the percent chance an offspring will be homozygous dominant?
0%
25%
50%
75%
What percent of offspring will have the recessive phenotype?
0%
25%
50%
75%
What percent of offspring will be heterozygous?
100%
25%
50%
75%
What are the parent genotypes?
AA x aa
Aa x Aa
Aa x aa
AA x Aa
What is the definition of heredity?
Characteristics passed down from parent to offspring
Physical appearance of an organism
Genetic make-up of an organism
A singular cross examining one trait passed from parent to offspring
What is the definition of an allele?
A specific form of a gene
Physical appearance of an organism
Genetic make-up of an organism
Section of a chromosome that directs body functions
What is the definition of a dominant allele?
Form of a gene that only needs 1 copy to be visible
Form of a gene that needs both copies to be visible
Physical appearance of an organism
Genetic make-up of an organism
What is the definition of a recessive allele?
Form of a gene that only needs 1 copy to be visible
Form of a gene that needs both copies to be visible
Physical appearance of an organism
Genetic make-up of an organism
What is the definition of phenotype?
Form of a gene that only needs 1 copy to be visible
Form of a gene that needs both copies to be visible
Physical appearance of an organism
Genetic make-up of an organism
What is the definition of genotype?
Form of a gene that only needs 1 copy to be visible
Form of a gene that needs both copies to be visible
Physical appearance of an organism
Genetic make-up of an organism
What is genetics the study of?
Heredity
Life
Plants and Animals
Fungi
What kind of a plant did Mendel study?
Pea Plant
Oak Trees
Carrots
Potatoes
Who is the Father of Genetics?
Gregor Mendel
Albert Einstein
Anton von Leuwenhoek
Condoleezza Rice
