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Genetics & Heredity

Total questions: 21

Worksheet time: 20mins

Name
Class
Date
1.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
2.
What is a gene?
a)
A bundle (like a hot dog bun) that the DNA is packed into
b)
something inside the nucleus
c)
a piece of DNA
d)
all of your DNA
3.

Bundled up, organized DNA is called a

a)

gene

b)

trait

c)

chromosome

d)

nucleotide

4.

What is the correct order from SMALLEST to LARGEST?

a)

gene, DNA, chromosome, nucleus, cell

b)

cell, nucleus, chromosome, DNA, gene

c)

gene, chromosome, DNA, nucleus, cell

d)

gene, DNA, nucleus, chromosome, cell

5.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
6.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
7.
DNA codes for...
a)
bases
b)
proteins
c)
amino acids
d)
phosphates
8.
Why do we need proteins?
a)
To taste good
b)
Everything is made of or by them
c)
Do digest our food
d)
to make pizza
9.

Which of these is an acquired trait instead of inherited?

a)

Blue eyes

b)

Brown hair

c)

Shooting a bow and arrow

d)

Skin color

10.

Which of these is a trait you can inherit?

a)

Like basketball

b)

Being a Quarterback

c)

Writing

d)

Blue eyes

11.

Which of these is a trait you can inherit?

a)

Hair color

b)

Hate spicy food

c)

Good at math

d)

Can walk backwards

12.
The physical appearance of a trait is known as the-
a)
genotype
b)
phenotype
c)
characteristics
d)
intelligence
13.
Hair colour is an example of
a)
genotype
b)
phenotype
14.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
15.
The allele combinations
a)
genetics
b)
mitosis
c)
genotype
d)
phenotype
16.
How many letters does a genotype contain?
a)
1
b)
2
c)
3
d)
4
17.

Being able to roll the tongue is a dominant trait (T). Not being able to roll the tongue is a recessive trait (t). A persons genes are tt. Which trait would they have?

a)

Able to roll the tongue

b)

Not able to roll the tongue

c)

Can't tell

18.
Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?
a)
Brown Hair
b)
Blonde Hair
c)
Brown and Blonde Hair
d)
Black Hair
19.
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
20.
This trait will always be expressed if present because it will mask the expression of others
a)
stem cells
b)
heterozygous
c)
dominant
d)
recessive
21.
The genotype of:  Bbll  will have the PHENOTYPE of...
a)
black fur/short tail
b)
black fur/long tail
c)
white fur/short tail
d)
white fur/long tail

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