wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Distance Learning Heredity and DNA

Total questions: 51

Worksheet time: 53mins

Name
Class
Date
1.
Chromosomes are found in the ____________ of the cell
a)
Chloroplast
b)
Nucleus
c)
Cytoplasm
d)
Mitochondria
2.
The passing of DNA from parents to offspring
a)
Generation
b)
Heredity
c)
Inheritance
d)
Traits
3.
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
4.
What are the possible combinations of a pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white
a)
all Pp
b)
all PP
c)
Pp,PP,Pp,PP
d)
all pp
5.
The mathematical chance that something will happen is known as...
a)
chance
b)
luck
c)
probability
6.
A punnet square is used to organize and determine what?
a)
Probabilities
b)
Combinations
c)
Phenotypes
d)
Genotypes
7.
A couple has 6 children, all girls. If the mother gives birth to a 7th child, what is the probability that the seventh child will be a girl?
a)
7 out of 7
b)
6 out of 7
c)
1 out of 2
d)
1 out of 7
8.
Are recessive traits shown with capital or lowercase letters? 
a)
Capital
b)
Lowercase
9.
When the allele combination is a dominate and a recessive trait together which trait will be seen?
a)
Dominate
b)
Recessive
c)
none
d)
both
10.
The primary function of the chromosome is to...
a)
relay messages between different cells in animals.
b)
transport waste materials rapidly out of the cell.
c)
release energy by breaking down food molecules.
d)
store the genetic instructions needed to specify traits.
11.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
12.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
13.
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
14.

A chart that shows possible gene combinations.

a)

Karyotype

b)

DNA

c)

Punnett square

d)

Replication

15.

The field of biology that studies the inheritance of traits.

a)

biology

b)

genetics

16.

An Austrian monk who studied heredity in pea plants and is often referred to as the father of genetics.

a)

Gregor Mendel

b)

James Watson

17.

The sides of DNA are made of

a)

sugars and phosphates

b)

nitrogen

c)

candy

d)

carbohydrates

18.

In the DNA molecule what are the steps of the ladder made of?

a)

sugar

b)

Nitrogen bases

c)

phosphates

d)

gum drops

19.

Which base always pairs with Adenine?

a)

Cytosine

b)

Thymine

c)

Guanine

d)

All of the above

20.
There is a segment of DNA that codes for every trait that a person has. These segments of DNA are found on
chromosomes and are called ________.
a)
Deoxyribonucleic acid
b)
Genes
c)
Heredity
d)
Recessive Traits
21.
A single piece of coiled DNA found in the cells; contains genes that encode traits.
a)
gene
b)
chromosome
c)
trait
d)
DNA
22.
The genes of an organism
a)
Mesotype
b)
Phenotype
c)
Teletype
d)
Genotype
23.
The physical traits of an organism
a)
Teletype
b)
Genotype
c)
Mesotype
d)
Phenotype
24.
This means Different Gene
a)
Dominant
b)
Recessive
c)
Homozygous
d)
Heterozygous
25.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa
26.
How many are tall?
a)
0
b)
1
c)
2
d)
4
27.

Juan's dog, Luna, was hit by a car. Fortunately, she lived and is healthy! But she is now missing a leg. Having only three legs is a(n)

a)

inherited trait.

b)

learned behavior.

c)

instinct.

d)

acquired trait.

28.

When the patient needs eye surgery because he has the same eye problem as his mom and dad, it is a(n) ______ .

a)

learned behavior

b)

acquired physical trait

c)

inherited physical trait

d)

instinct

29.

A lion and a tiger were crossed. Select the picture that MOST resembles what the baby would look like when it grew up.

a)
b)
c)
d)
30.

Which example below is a learned behavior?

a)

the length of your fingers

b)

getting the flu

c)

running a race

d)

blinking

31.

Purebred is another word for __________, while hybrid is another word for __________.

a)

dominant; recessive

b)

recessive; dominant

c)

homozygous; heterozygous

d)

heterozygous; homozygous

32.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
33.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
34.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
35.
Replicate the following strand of DNA: 
AATCATGGA
a)
AATCATGGA
b)
TTAGTACCT
c)
UUAGUACCU
d)
GGATAUCUA
36.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
37.
order of replication
a)
3, 2, 1, 4
b)
2, 1, 4, 3
c)
2, 3, 1, 4
d)
3, 4, 1, 2
38.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
39.

The picture below shows an enzyme unwinding and unzipping DNA.

​What is the name of this enzyme?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

40.

Match the nucleotide with its complementary nucleotide. (DNA to DNA).


Cytosine-

a)

Thymine

b)

Guanine

c)

Adenine

41.

DNA replication runs from ______' to _____' and is said to be ______________________

a)

5, 3, antiparallel

b)

3, 5, antiparallel

c)

5, 3, parallel

d)

3, 5, parallel

42.
Once replication in a DNA molecule is complete, each new DNA molecule contains 
a)
two new strands.
b)
3 exact copies of strands.
c)
one new strand and one old.
d)
two old strands.
43.
Which of the following will NOT generally cause mutations?
a)
radiation
b)
DNA replication
c)
chemicals
d)
viruses
44.
What are the functions of genes?
a)
instructions for producing proteins
b)
instructions for producing DNA
c)
instructions for producing lipids
d)
they have no function
45.
What does mRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
46.
What does rRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
47.
What does tRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
48.
What is the process that copies information from DNA into RNA?
a)
protein synthesis
b)
transcription
c)
translation
d)
DNA Polymerase
49.

Replicate the following strand of DNA:

AATCATGGA

a)

AATCATGGA

b)

TTAGTACCT

c)

UUAGUACCU

d)

GGATAUCUA

50.
What is the relationship between DNA and chromosomes?
a)
Chromosomes are made of DNA
b)
DNA is made of chromosomes
c)
DNA and chromosomes are the same thing.
d)
All of the above are correct
51.

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

a)

In order for genetic information to be transferred into daughter cells.

b)

In order for the cell to be able to increase in size.

c)

In order for the DNA to be contained in the nucleus.

d)

In order for the cell to re-order the DNA sequencing in the new cells.