WorksheetsGenetics
Total questions: 31
Worksheet time: 27mins
Name
Class
Date
1.
What is the genotype for gene A in this diploid individual?
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
2.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
3.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
4.
When two haploid sex fuse together during fertilization they become ______________
a)
haploid cells
b)
meiosis
c)
mitochondria
d)
diploid cells
5.
The sex of an offspring is determined by ______________________.
a)
the mother
b)
the father
c)
the mother and the father
d)
by the environment
6.
Term for homozygous organisms that display two dominant phenotypes at the same time
a)
codominance
b)
incomplete dominance
c)
multiple alleles
d)
linked genes
7.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
8.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
9.
In this punnett square, which is the dominant trait?
The B stands for bud.
The B stands for bud.
a)
purple flower bud
b)
white flower bud
c)
dominant
d)
recessive
10.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
11.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
12.
What is the genotype for this organism?
(E= 3 eyes, e= 1 eye)
(E= 3 eyes, e= 1 eye)
a)
EE
b)
Ee
c)
ee
d)
EE or Ee
13.
Is this pedigree dominant or recessive? (Be prepared to explain how you know)
a)
Dominant
b)
Recessive
c)
Neither
14.
In humans, skin tone is caused by 3 genes, each with 2 alleles. This is an example of
a)
codominance
b)
incomplete dominance
c)
polygenic inheritance
d)
multiple alleles
15.
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
16.
Jim has type AB+ blood. His dad could be type O+.
a)
True
b)
False
17.
The blood type trait is
a)
codominant
b)
multi allele
c)
polygenic
d)
codominant, multi allele, and polygenic
18.
What type of cells are represented by the inside of a punnet square?
a)
sperm
b)
egg
c)
zygotes
d)
gametes
19.
Which gene is most likely linked to gene A in the image?
a)
g
b)
b
c)
c
d)
e
20.
Which gene will most likely cross over and separate from gene "a" during prophase l?
a)
B
b)
C
c)
g
d)
f
21.
What blood type is this? IA i
a)
type A heterozygote
b)
type O
c)
type A homozygote
d)
type B heterozygote
22.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
23.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
24.
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
25.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
26.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair)
a)
50 % Brown Hair and 50% Blond Hair
b)
25 % Brown Hair and 75% Blond Hair
c)
75 % Brown Hair and 25% Blond Hair
d)
0% Brown Hair and 100% Blond Hair
27.
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
28.
A segment found on DNA is called a ______.
a)
Gene
b)
Jean
c)
Billie Jean
d)
Chromosome
29.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
30.
What does an open circle represent?
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
31.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
100 %
