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Heredity Quiz #1

Total questions: 34

Worksheet time: 1hrs 24mins

Name
Class
Date
1.

The study of heredity is

a)

Geology

b)

Genetics

c)

Physics

d)

Chemistry

2.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
3.
If a child has red hair, they inherited a certain _______________ from their parents.
a)
ratio
b)
trait
c)
probability
d)
sex chromosome
4.

Different versions of a gene.

a)

heredity

b)

gene

c)

allele

d)

genotype

e)

phenotype

5.

The combination of alleles that you inherited from your parents. This is what you genes look like, the letters. ex. HhGg

a)

heredity

b)

gene

c)

allele

d)

genotype

e)

phenotype

6.

The observable traits. This is what you physically look like, or what gene is expressed. ex. Round Yellow

a)

heredity

b)

gene

c)

allele

d)

genotype

e)

phenotype

7.

An organism with two dominant or two recessive alleles. Or same.

a)

heterozygous

b)

homozygous

8.

An organism with one dominant and one recessive allele. Or different.

a)

heterozygous

b)

homozygous

9.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
10.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
11.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
12.
Aa is
a)
homozygous
b)
heterozygous
13.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
14.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
15.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender 
d)
all of the above
16.
Autosomes are
a)
chromosomes found in autotrophs, only
b)
chromosomes that automatically correct all errors in the DNA
c)
chromosomes that determine traits other than sex
d)
chromosomes that determine the sex of the individual
17.

How many chromosomes does a human body cell have, total?

a)

48

b)

46

c)

23

d)

47

18.

The 2 female sex chromosomes are ___.

a)

XY

b)

XX

19.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
20.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
21.
In the punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
22.
In the punnett square shown, what is the genotypes of the two parents?
a)
RW and RR
b)
RW and WW
c)
RR and WW
d)
RW and RR
23.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
24.
B - black, b - brown.  Two black mice mate and have some black and some brown mice.  What is the genotype of the parents?
a)
BB x Bb
b)
BB x bb
c)
Bb x Bb
d)
Bb x bb
25.
What does a Punnett Square do?
a)
tell you exactly what your offspring will look like
b)
increase the chance you pass on recessive traits
c)
predict genotypes and phenotypes in offspring
d)
have no purpose but for Taylor to give us extra assignments
26.

In a pedigree chart, a male is represented by a

a)

circle

b)

square

c)

rhombus

d)

triangle

27.

In a pedigree chart, a female is represented by a

a)

circle

b)

square

c)

rhombus

d)

triangle

e)

rectangular prism

28.

A heterozygous genotype is represented by a(n) ____________ circle or square.

a)

empty

b)

fully shaded

c)

half-shaded

d)

invisible

29.

If the male or female has the trait listed in the pedigree chart, then the circle or square is _________________.

a)

empty

b)

fully shaded

c)

half-shaded

d)

spotted, like a leopard

30.

If the male or female does not have the trait listed in the pedigree chart, then the circle or square is _________________.

a)

empty

b)

fully shaded

c)

half-shaded

d)

spotted, like a leopard

31.

This pedigree chart shows ____________ having the trait.

a)

three males

b)

three females

c)

ten males

d)

two females

e)

pedigree charts are stupid

32.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
33.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
34.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6

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