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Genetics Basic Quiz # 1

Total questions: 30

Worksheet time: 23mins

Name
Class
Date
1.

What is DNA

a)

donuts need algea

b)

did no algebra

c)

do not answer

d)

deoxyribonucleic acid

2.

Where is DNA found???

a)

Cell membrane

b)

Nucleus

c)

Cell wall

d)

Auditorium

3.
Traits that are passed from generation to generation are called ____________________
a)
Excited Traits
b)
Inherited Traits
c)
Inclined Traits
d)
Special Traits
4.
What does DNA do?
a)
a.  It carries genetic codes from parents to offspring.
b)
a.  It carries oxygen from the lungs to the body.
c)
a.  It tells you who you are.
d)
a.  It defines the organism.
5.

A ______ is the most basic unit of structure and function in all living things.

a)

cell

b)

cytoplasm

c)

nucleus

d)

DNA

6.

An allele that gets masked is called _______

a)

recessive

b)

dominant

c)

homozygous

d)

heterozygous

7.

The stronger allele that will always show is called __________.

a)

dominant

b)

recessive

c)

homozygous

d)

heterozygous

8.

What is an example of a phenotype? Hint: There is more than 1 correct answer

a)

HH, Hh, hh

b)

The genes an organism has

c)

brown eyes vs. blue eyes, straight hair vs. curly hair

d)

How a trait is physically expressed

9.

What is an example of a genotype? Hint: There is more than 1 correct answer

a)

HH, Hh, hh

b)

The genes an organism has

c)

brown eyes vs. blue eyes, straight hair vs. curly hair

d)

How a trait is physically expressed

10.

Asexual reproduction requires

a)

Two parents

b)

Only one parent

11.

Asexual reproduction results in offspring that are...

a)

genetically different

b)

genetically identical

12.

Which of the following is an advantage of asexual reproduction?

a)

There is greater genetic diversity in offspring.

b)

There is a longer development time for offspring.

c)

There is more food available for offspring.

d)

There is a greater number of offspring.

13.

Which of the following is a disadvantage of asexual reproduction?

a)

High genetic variability

b)

Requires a lot of energy

c)

Facilitates adaptation

d)

Offspring have limited ability to adapt

14.
The passing of physical characteristics from parent to offspring 
a)
Heredity
b)
Chromosome
c)
Genes
d)
Chemistry
15.
Which species can produce offspring that are genetically different from their parents?
a)
A species that has few variations 
b)
A species that reproduces asexually 
c)
A species that reproduces sexually 
d)
A species that competes with a similar species
16.

___________ reproduction has the advantage of increasing genetic variation.

a)

Sexual

b)

Asexual

c)

Fission

d)

Budding

17.

Brown Bears reproduce sexually, so all the baby bears are...

a)

different.

b)

the same.

18.

An exact copy of a cell/organism is produced...

a)

Mitosis

b)

Meiosis

19.
What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 
a)
0 in 4
b)
1 in 4
c)
2 in 4
d)
4 in 4
20.

Which of the following is/are considered to be purebreds? Select all that apply.

a)

AA

b)

bb

c)

Dd

d)

ee

21.

Which of the following is/are an example(s) of a genotype? Select all that apply.

a)

tall

b)

purple

c)

AA

d)

wrinkled

e)

bb

22.

In pea plants, tall is dominant to short. If 2 heterozygous plants are crossed, what % of the offspring will be short?

a)

0%

b)

25%

c)

50%

d)

75%

23.
Black fur is dominant (B) over white fur (b).  Find the probability of heterozygous offspring using the following genotype of these parents.
Bb + bb
a)
0%
b)
25%
c)
50%
d)
100%
24.

How do you classify the following genotype : AA

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

25.

If Purple Flowers (P) are dominant over white flowers (p), what would the phenotype be for a Pp genotype?

a)

Purple flowers

b)

White flowers

c)

Not enough information

26.

If Brown eyes (B) are dominant over blue eyes (b), what would the phenotype be for a bb genotype?

a)

Brown Eyes

b)

Blue Eyes

c)

Green Eyes

27.

If straight hair (S) is dominant to curly hair (s) - what are the possible Genotype(s) for curly hair?

a)

ss only

b)

SS only

c)

SS or Ss

d)

Curly Hair

e)

Straight Hair

28.
The physical appearance of a trait is known as the-
a)
genotype
b)
phenotype
c)
characteristics
d)
intelligence
29.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
30.
The allele combinations
a)
genetics
b)
mitosis
c)
genotype
d)
phenotype

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