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Genetics Final

Total questions: 50

Worksheet time: 2hrs 51mins

Name
Class
Date
1.
Two different genes for a trait (sometimes called hybrid). Bb
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
2.
What would the ratio for genotypes be for this Punnett Square?
a)
2Bb:2bb
b)
2BB:2Bb
c)
1BB:2Bb:1bb
d)
4Bb
3.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
4.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
5.
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
6.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
7.
___________________________ is the field of science that studies of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
8.
He is known as the father of modern day genetics.
a)
Gregory Mendel
b)
Greg Mendel
c)
Gregor Mendel
d)
Grace Mendel
9.
Which is a true statements about this picture?
a)
Brown is recessive
b)
Brown is dominant
c)
Blue is dominant
d)
Blue is codominant
10.
What are the possible phenotypes in this punnett square?
a)
Bb, bb, BB
b)
purple, white
c)
Bb, bb
d)
light purple
11.
What is a gene?
a)
An entire chromosome that  codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
12.
What is a genotype? 
a)
The genetic make up (code)
b)
The physical trait
13.
Tall is dominant to short. What is the phenotype of this organism?
Tt
a)
tall
b)
short
14.
Are recessive traits shown with capital or lowercase letters? 
a)
Capital
b)
Lowercase
15.
G = dominant green and y = recessive yellow
A fish has a Gy genotype, what will its phenotype be?
a)
yellow
b)
green
c)
greenish-yellow
d)
red
16.

How did Mendel refer to the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)?

a)

Gametogenic

b)

Elective traits

c)

Alleles

d)

Sequals

17.

What do we call the result of the genotype (for example, the color of the peas)?

a)

Visible traits

b)

Physiotrait

c)

Genotype 2

d)

Phenotype

18.

What do we call the table used to calculate the probability of an offspring's genotype?

a)

Punnett Square

b)

Venn Diagram

c)

Avogadro's Graph

d)

Circle of Life

19.

Yy is an example of...

a)

A heteroygous phenotype

b)

A heterozygous genotype

c)

A homozygous phenotype

d)

A homozygous genotype

20.

YY is an example of...

a)

A heterozygous phenotype

b)

A homozygous phenotype

c)

A homozygous genotype

d)

A heterozygous genotype

21.
The passing of genetic traits from parent to offspring is called
a)
cross-pollination
b)
cross-breeding
c)
heredity
d)
genetics
22.
Gregor Mendel’s principles of genetics apply to
a)
plants only
b)
animals only 
c)
pea plants only 
d)
all organisms that reproduce sexually
23.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
24.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
25.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
26.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
27.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
28.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
29.
Give the genotype for person II-1, for this autosomal trait.
a)
GG
b)
Gg
c)
gg
d)
we cannot be 100% sure of the genotype
30.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
31.

In this pedigree, the shading represents people in the family with dark hair while the unshaded represents blondes. Is dark hair controlled by a dominant or recessive allele?

a)

Dominant

b)

Recessive

32.

When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....

a)

Incomplete Dominance

b)

Codominance

33.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross a red flower with a speckled flower. What is the phenotypic ratio?

a)

2 red, 2 speckled

b)

2 red, 2 blue

c)

2 blue, 2 speckled

34.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross two speckled flowers.

a)

1 red, 2 speckled, 1 blue

b)

2 red, 2 blue

c)

2 blue, 2 speckled

d)

1 red, 1 speckled, 2 blue

35.

In mice coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.


What is the genotype for a brown mouse?

a)

BB

b)

Bb

c)

bb

36.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
37.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
38.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
39.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
40.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?
a)
XHXh
b)
XhXh
c)
XHXH
d)
XhY
41.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
42.
Which of the following genotypes belongs in the red box in the Punnett square?
a)
XBXb
b)
XbXb
c)
XbY
d)
XBY
43.
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? 
a)
0%
b)
25%
c)
50%
d)
100%
44.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
45.

What goes in box 15

a)

aabb

b)

AABB

c)

aaBB

d)

AAbb

46.
Using the dihybrid cross and key provided, what is the probability of the offspring being tall and white?
a)
9
b)
2
c)
3
d)
6
47.
In a dihybrid cross
a)
one trait is crossed.
b)
two traits are crossed.
c)
four boxes are needed for the punnett square.
d)
mom's alleles are dominant.
48.

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

49.

Based off this punnett square, what fraction of the offspring will have wrinkled, green seeds?

a)

9/16

b)

3/16

c)

1/16

d)

16/16

50.

What is the genotype for a pea plant homozygous for round seeds (R), and heterozygous for yellow seeds?

a)

RrYy

b)

RRyy

c)

RRYy

d)

rryy

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