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DNA Structure & Taxonomy

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.
What are the nucleotides made of?
a)
Sugar, Phosphate, nitrogen base
b)
Phosphate, Adenine, nitrogen base
c)
Thymine, Adenine, Cytomine
d)
Phosphate, Nitrogen, Adenine
2.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
3.

What are the 4 nitrogen bases?

a)

adenine, thymine, cytoplasm, and guanine

b)

adenine, thymine, cytosine, and guanine

c)

adenine, thymine, cytosine, and gylcerol

d)

adenine, thymine, cytosine, and glucose

4.
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
5.
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
6.

What would be the compliment to the following strand of DNA:

AATCATGGA

a)

AATCATGGA

b)

TTAGTACCT

c)

UUAGUACCU

d)

GGATAUCUA

7.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
8.

Primary functions of DNA are (mark all that apply)

a)

Transmit information on heredity from one generation to the next

b)

Control cellular respiration

c)

Regulate homeostasis

d)

Provide a blueprint for making proteins

9.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
10.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
11.

The scientific name for an organism is made from the:

a)

class and family name

b)

genus and species name

c)

domain and kingdom name

d)

kingdom and phylum name

12.

This organism is multicellular, heterotroph, that has a cell wall made of chitin. What kingdom does it belong in?

a)

fungi

b)

plantae

c)

animalia

d)

eubacteria

13.

This organism is found in pond water. It has a nucleus, is microscopic, unicellular and can perform photosynthesis. What kingdom does it belong in?

a)

protista

b)

eubacteria

c)

archaebacteria

d)

plantae

14.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
15.
A botanist discovers a new plant in the jungle. Which of the
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?
a)
It was discovered in the summertime
b)
It is wet from a recent rain storm.
c)
Its leaves curl up on the edges.
d)
It is eaten by native jungle ants.
16.
A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?
a)
Coleoptera
b)
Heteroptera
c)
Diptera
d)
Lepidoptera
17.
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
a)
Whip Scorpion
b)
Wind Scorpion
c)
Daddy long legs
d)
Scorpion
18.

Which leaf is shown in the drawing?

a)

Magnolia

b)

Redbud

c)

Sweetgum

d)

None of the above

19.
Which two orgainsms have hair? 
a)
Sharks & Ray Finned Fish
b)
Primates & Rodents
c)
Birds & Crocodiles
d)
Rabbits & Birds
20.
All the animals to the right of the hagfish would have the common characteristic of -
a)
Fur
b)
Claws or nails
c)
Lungs
d)
Jaws

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