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Genetics Vocabulary

Total questions: 21

Worksheet time: 10mins

Name
Class
Date
1.

The physical or behavioral trait that is shown or expressed. Ff is the genotype for this trait. Having freckles is the ___________.

a)

genotype

b)

gene

c)

phenotype

d)

alleles

2.

The child or product of reproduction by plants, animlas, and all other living things.

a)

heredity

b)

gene

c)

chromosomes

d)

offspring

3.

The allele that needs two copies to express the trait.

a)

recessive allele

b)

dominant allele

c)

inherited trait

d)

DNA

4.

A behavioral or physical characteristic that is passed from parents to their offpspring.

a)

genetics

b)

inherited trait

c)

heredity

d)

punnett square

5.

pairs of information for traits; made up of sections called genes.

a)

genes

b)

DNA

c)

chromosomes

d)

alleles

6.

the allele that is shown or expressed even if only one copy is present.

a)

recessive allele

b)

dominant allele

c)

punnett square

d)

gene

7.

a tool we use for predicting traits of an offspring.

a)

punnett square

b)

inherited trait

c)

alleles

d)

offspring

8.

The combination of alleles that an organism has. This determines what trait the organism will have. Ex: Pp

a)

phenotype

b)

genotype

c)

alleles

d)

DNA

9.

The passing of traits from parent to offspring

a)

DNA

b)

genetics

c)

heredity

d)

genes

10.

Different forms (letters) of a single gene. Ex: a

a)

offspring

b)

DNA

c)

alleles

d)

inherited trait

11.

A piece of DNA that codes for a specific protein.

a)

gene

b)

allele

c)

chromosomes

d)

DNA

12.

Deoxyribonucleic Acid: strands are made up of sugar/phosphate sides and nitrogen base pairs. This nucleic acide contains an organism's genetic material.

a)

phenotype

b)

genotype

c)

dominant allele

d)

DNA

13.

True or False: Heterozygous genes are copies of the genes that are the SAME.

a)

True

b)

False

14.

These 2 nitrogen base pairs are complementary, according to Chargaff's Rule.

a)

adenine

b)

cytosine

c)

thymine

15.

These 2 nitrogen base pairs are complementary, according to Chargaff's Rule.

a)

adenine

b)

guanine

c)

cytosine

16.

TRUE OR FALSE: Homozygous genes are the same two alleles (letters).

a)

True

b)

False

17.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
18.
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%
19.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
20.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
21.

The chance that something will happen.

a)

Luck

b)

flip of a coin

c)

chance

d)

probability