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Bio MCAS Genetics/Punnett Square OR

Total questions: 65

Worksheet time: 2hrs 36mins

Name
Class
Date
1.
Alleles that are the same are called
a)
homozygous
b)
heterozygous
c)
dominant
d)
recessive
2.
Alleles that are different are called
a)
heterozygous
b)
homozygous
c)
dominant
d)
recessive
3.
Traits that show up more and mask or cover up the other trait are called
a)
homozygous
b)
heterozygous
c)
dominant
d)
recessive
4.
Traits that are often covered up and show only in the homozygous state are called
a)
homozygous
b)
heterozygous
c)
dominant
d)
recessive
5.
Traits shown by capital letters
a)
dominant
b)
recessive
c)
sex-linked
d)
codominant
6.
trait shown by lower case letters
a)
dominant
b)
recessive
c)
sex-linked
d)
codominant
7.
The type of inheritance where both traits show at the same time
a)
dominant
b)
recessive
c)
sex-linked
d)
codominant
8.
The type of inheritance where the trait is linked to the X chromosome
a)
dominant
b)
recessive
c)
sex-linked
d)
codominant
9.
If 2 black guinea pigs have a white guinea pig and black is dominant to white, the parents must have been...
a)
Bb x Bb
b)
BB x bb
c)
BB x BB
d)
bb x bb
10.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
11.
What type of inheritance is determined by multiple genes located at different loci on different chromosomes and there can be a range of traits?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
12.
How many alleles does someone have for a genotype?
a)
1
b)
2
c)
3
d)
4
13.
What do you call the non-Mendelian inheritance pattern that states that neither trait is dominant and the traits appear to blend together?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
14.

In humans, B is the allele for brown eyes and b is the allele for blue eyes. Two brothers both have brown eyes, but one of them has both the B and b  alleles while the other only has B  alleles. Which statement is true about the brothers?

a)

They have the same genotype and phenotype.

b)

They have different phenotypes and genotypes.

c)

They have the same phenotype but different genotypes.

d)

They have the same genotype but different phenotypes.

15.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
16.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
17.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
18.
When the heterozygous phenotype is a blend of the two other phenotypes, this is called...
a)
Complete Dominance
b)
Uncomplete Dominance
c)
Incomplete Dominance 
d)
Homozygous Dominant 
19.
When the heterozygous phenotype displays properties of both the phenotypes at the same time, this is called?
a)
Domiance
b)
Multi-Dominace
c)
Incomplete Dominace
d)
Co-Dominance
20.

This is when the dominant allele is not completely dominant over the recessive allele. (A blend of the alleles will show)

a)

Co-Dominance

b)

Polygenetics

c)

Incomplete Dominance

d)

Epistasis

21.

This is when both phenotypes will be present. (Example would be a spotted cow.)

a)

Incomplete Dominanc

b)

Epistasis

c)

Codominance

d)

Polygenic

22.

Which of the following means many traits?

a)

Codominance

b)

Multi-Genetics

c)

Polygenic

d)

Incomplete Dominance

23.
Type of Trait that is controlled by MANY genes at once. Many Genes will 'contribute' to one phenotype.
a)
Multiple Allele Trait
b)
Polygenic Trait
c)
Monogenic Trait
d)
Co-Dominant Trait
24.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be 
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
25.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
26.
I have 1 X chromosome and 1 Y chromosome. What am I?
a)
Male
b)
Female
27.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
28.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
29.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
30.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb
31.
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
32.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
33.
Which of the following will only show if two alleles are present?
a)
a dominant trait
b)
a recessive trait
34.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
35.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
36.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
37.
Two heterozygous (Tt)tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
38.
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%
39.
What type of "square" helps us solve genetic problems?
a)
carpenter square
b)
Mendel square
c)
Punnett square
d)
genetic square
40.

Recessive alleles may not be expressed because they are

a)

masked by the dominant allele

b)

the least common allele in the population

c)

the most common allele in the population

d)

less likely to having crossing over

41.

Which of the following is homozygous recessive?

a)

PP

b)

Pp

c)

pp

42.

Which of the following is homozygous dominant?

a)

RR

b)

Rr

c)

rr

43.

What word would be INCORRECT to describe "QQ"

a)

homozygous

b)

dominant

c)

genotype

d)

recessive

44.

What are the chances that two white flower (pp) pea plants could produce a purple flower pea plant?

a)

0%

b)

25%

c)

50%

d)

75%

45.
Are recessive traits shown with capital or lowercase letters? 
a)
Capital
b)
Lowercase
46.
The mathematical chance that something will happen is known as...
a)
chance
b)
luck
c)
probability
47.
Two of the same genes for a trait (sometimes called purebred). BB or bb
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
48.
What would the ratio for genotypes be for this Punnett Square?
a)
2Bb:2bb
b)
2BB:2Bb
c)
1BB:2Bb:1bb
d)
4Bb
49.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
50.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
51.
A white flower (rr) is crossed with a white flower (rr). What is the phenotype of the offspring? Draw a Punnett square and answer the question.
a)
100% white
b)
75% white; 25% red
c)
75% red; 25% white
d)
100% red
52.
A black chicken (BB) is crossed with a black chicken (BB). What is the genotype and phenotype of the offspring? Draw a Punnet square and naswer this question.
a)
100% heterozygous; 50% black
b)
100% homozygous dominant; 100% black
53.
Two heterozygous red flowers (white flowers are recessive) are crossed. What is the genotype of the offspring?
a)
75% homozygous dominant; 25% heterozygous
b)
50% homozygous dominant; 50% heterozygous
c)
25% homozygous dominant; 25% homozygous recessive; 50% heterozygous
54.
Two heterozygous red flowers (white flowers are recessive) are crossed. What is the phenotype of the offspring?
a)
50% red; 50% white
b)
75% white; 25% red
c)
25% red; 25% pink; 50% white
d)
75% red; 25% white
55.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
56.
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%
57.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
58.

Gametes have haploid or diploid number of chromosomes?

a)

Haploid

b)

Diploid

59.

diploid cell is to body cell, as haploid is to ___________________

a)

egg cell

b)

chromosome

c)

sex chromosome

d)

out of body cell

60.

Body cells are also known as

a)

somatic cells

b)

gametes

c)

haploid cells

d)

sex cells

61.

Which of the following is NOT a somatic cell?

a)

sperm

b)

skin cell

c)

blood cell

d)

bone cell

62.

female sex cell

a)

zygote

b)

egg

c)

sperm

d)

meiosis

63.

male sex cell

a)

egg

b)

zygote

c)

sperm

d)

diploid cell

64.

diploid or haploid

a)

diploid

b)

haploid

65.

diploid or haploid

a)

diploid

b)

haploid

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