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Heredity

Total questions: 20

Worksheet time: 21mins

Name
Class
Date
1.

What is NOT an inherited trait of humans?

a)

playing a piano

b)

Freckles

c)

Hair color

d)

Height

2.
What is genetics?
a)
The study of DNA nucleotides
b)
The study of heredity
c)
The study of a cell dividing into 2
d)
The study of eye color
3.

The passing of DNA from parents to offspring is _____.

a)

Generation

b)

Heredity

c)

Inheritance

d)

Traits

4.
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
5.
Segments of DNA are called _______________________
a)
Genes
b)
Nuclei
c)
genotypes
d)
Chromosomes
6.
What is a recessive allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
7.
What is a dominant allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
8.

The physical traits of an organism is called _____.

a)

Teletype

b)

Genotype

c)

Mesotype

d)

Phenotype

9.

The genes of an organism that code for a trait is called____.

a)

Mesotype

b)

Phenotype

c)

Teletype

d)

Genotype

10.

The gene that code for the pure breeding is ______.

a)

Dominant

b)

Recessive

c)

Heterozygous

d)

Homozygous

11.
Genes always appear in pairs. Your parents donate ________ allele for every trait.
a)
1
b)
2
c)
23
d)
46
12.

The gene that code for a hybrid breeding or Different Gene.

a)

Dominant

b)

Recessive

c)

Homozygous

d)

Heterozygous

13.
____________________ are used to make predictions about the genotypes and phenotypes of offspring.
a)
Dominant Squares
b)
Punnett Grids
c)
Punnett Squares
d)
Recessive Squares
14.
What is Bb?
a)
Homozygous
b)
Heterozygous
c)
Recessive
d)
Alleles
15.

What are the two genotypes that show the DOMINANT Phenotype

a)

GG, gg

b)

GG, Gg

c)

Gg, gg

d)

gg, Gggg

16.
What is the only Genotype that shows the RECESSIVE Phenotype?
a)
GG
b)
Gg
c)
gg
17.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa
18.

How many are tall?

a)

0

b)

1

c)

2

d)

4

19.
The different forms of a gene
a)
heredity
b)
genetics
c)
gene
d)
alleles
20.

In peas, yellow pod color is dominant to green pod color. Two heterozygous parents are crossed. What are the chances that the offspring will have green pods?

a)

25%

b)

50%

c)

75%

d)

100%

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