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Genetics Vocabulary Practice

Total questions: 47

Worksheet time: 36mins

Name
Class
Date
1.
Which of the following is heterozygous
a)
FF
b)
tt
c)
Gg
d)
RR
2.
Which of the following is homozygous recessive?
a)
rr
b)
AA
c)
TT
d)
Ff
3.
What does the prefix hetero- in heterozygous mean?
a)
same
b)
different
c)
dating
d)
human
4.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
5.

Genotype and phenotype mean the same thing.

a)

True

b)

False

c)

Who knows?

d)

Who cares?

6.
The physical appearance of an organism based on traits
a)
Genotype
b)
Phenotype
c)
Meiosis
d)
Genetics
7.
The allele combinations
a)
genetics
b)
mitosis
c)
genotype
d)
phenotype
8.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
9.
different forms of the same gene are called
a)
alleles
b)
genetics
c)
p generation
d)
law of segregation
10.
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
11.
Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's genotype?
a)
BB
b)
bb
c)
Bb
d)
bB
12.
The different forms of a gene are called 
a)
traits
b)
chromosomes
c)
alleles
d)
peas
13.
Hair colour is an example of
a)
genotype
b)
phenotype
14.

The passing of traits from parent to child is known as _______________.

a)

heredity

b)

gene

c)

DNA

d)

RNA

15.

This trait is represented by a lower case letter and hidden whenever the dominant allele is present

a)

dominant allele

b)

codominance

c)

recessive allele

d)

Punnett Square

16.

This trait is represented by a capital letter and always shows up in an organism when the allele is present

a)

dominant allele

b)

codominance

c)

probability

d)

recessive allele

17.

_____ is the genetic makeup of an organism.

a)

phenotype

b)

genotype

18.

A ____ is a region of DNA that controls a trait.

a)

gene

b)

phenotype

c)

chromatin

d)

genotype

19.

The study of heredity is called

a)

Science

b)

DNA

c)

Dominant

d)

Genetics

20.

TT an example of a....

a)

Genotype

b)

Phenotype

21.

Tt an example of a....

a)

Genotype

b)

Phenotype

22.

tt an example of a....

a)

Genotype

b)

Phenotype

23.

A flower's red color an example of a....

a)

Genotype

b)

Phenotype

24.

A dog's soft fur an example of a....

a)

Genotype

b)

Phenotype

25.

A cat's calico fur an example of a....

a)

Genotype

b)

Phenotype

26.

The genotype TT is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

27.

The genotype Tt is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

28.

The genotype tt is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

29.

The genotype GG is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

30.

The genotype Gg is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

31.

The genotype gg is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

32.

If red color is dominant in flowers, what would a homozygous dominant flower's genotype look like?

a)

RR

b)

Rr

c)

rr

33.

If red color is dominant in flowers, what would a heterozygous flower's genotype look like?

a)

RR

b)

Rr

c)

rr

34.

If white color is recessive in flowers, what would a homozygous recessive flower's genotype look like?

a)

RR

b)

Rr

c)

rr

35.

PP

a)

Homozygous Dominant

b)

Heterozygous

c)

Homozygous Recessive

36.

Hh

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

37.

aa

a)

Heterozygous

b)

Homozygous Dominant

c)

Homozygous Recessive

38.

Dominant alleles are represented by ___________ letters.

a)

lowercase

b)

uppercase

39.

Recessive alleles are represented by ________ letters.

a)

uppercase

b)

lowercase

40.

BB

a)

dominant

b)

recessive

41.

Mm

a)

dominant

b)

recessive

42.

dd

a)

recessive

b)

dominant

43.

Blue eyes

a)

genotype

b)

phenotype

44.

Two alleles can be different

a)

homozygous

b)

heterozygous

45.

Two alleles can be the same

a)

homozygous

b)

heterozygous

46.

A structure found in the nucleus of the cell that contains genetic information (DNA)

a)

Chromosome

b)

Trait

c)

Hybrid

d)

Allele

47.

Which of the following are examples of phenotypes for pea plants? (choose all correct answers)

a)

purple flowers

b)

PP

c)

green seeds

d)

tall stems

e)

tt

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