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DNA/RNA remediation

Total questions: 37

Worksheet time: 57mins

Name
Class
Date
1.
What it the significance of the nitrogenous bases?
a)
# of adenines and cytosines determine RNA
b)
order of nitrogenous bases determines order of amino acids
c)
amount of thymine and guanine determines length of genes
d)
type of hydrogen bonds determines amino acids
2.
Which DNA strand is complementary to TGTAGCTGCGCGT
a)
AGUGCUGCGCGUA
b)
TGTAGCTGCGCGT
c)
ACATCGACGCGCA
d)
TCGCGCAGCTACA
3.
How is information for a specific protein carried on the DNA molecule?
a)
as a sequence of nucleotides
b)
in the double helix shape of the condensed chromosome
c)
in the ratio of adenines to thymines
d)
as a pattern of phosphates and sugars
4.
Which DNA strand is complementary to the top one shown in the picture?
a)
A
b)
B
c)
C
d)
D
5.
A model of a biological process is shown. What is the purpose of this process?
a)
To replicate the DNA of an organism before cell division
b)
To assemble nucleotides in an mRNA chain along a DNA template
c)
To synthesize amino acids used to unzip strands of DNA and copy the genetic code
d)
To translate the genetic code into a specific sequence of amino acids
6.
The initial steps in gene expression are modeled below. Double-stranded DNA first unwinds into two strands. Which process and product are represented in Diagram 2?
a)
Process: transcription; product: mRNA
b)
Process: translation; product: protein
c)
Process: replication; product: tRNA
d)
Process: recombination; product: polymerase
7.
Which of the following polypeptides is coded for by the mRNA sequence 5'AUG GUU AAA CGA CAA UCC3'?
*Use Codon Chart*
a)
Val, Lys, Phe, Gly, Ser
b)
Met, Asp, Phe, Ala, Arg
c)
Met, Val, Lys, Arg, Gln, Ser
d)
Ile, Gln, Lys, Asp, Gly, Leu, Ser
8.
Different types of mutations can occur in DNA.The diagram represents a type of mutation. Which statement describes the mutation in the diagram?
a)
A silent mutation results in the insertion of a different amino acid.
b)
A substitution occurs with the adenine base.
c)
A deletion of a cytosine base occurs.
d)
A base is inserted into one strand of the DNA.
9.
Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin. This mutation results in sickle-cell anemia. A partial sequence of bases from a normal hemoglobin gene and a sequence that results in sickle-cell anemia are shown picture. What type of mutation is depicted in this sequence?
a)
Substitution
b)
Insertion
c)
Deletion
d)
Frameshift
10.
Four different types of cells are shown in picture. Which characteristic is shared by all four cells?
a)
A mechanism for transforming sunlight into energy
b)
Self-locomotion
c)
Membrane-bound organelles that transport substances
d)
Genetic material composed of DNA
11.
The arctic fox inhabits northern areas of North America. The same arctic fox is shown in the drawing at different times of the year. What causes this change in fur color?
a)
The arctic fox has two traits for fur color that are determined at birth.
b)
The alleles for fur color change as the arctic fox grows older.
c)
Gene expression for fur color is regulated by latitude.
d)
Gene expression for fur color is regulated by temperature.
12.

At which point would hydrogen bonding between two nitrogenous bases normally occur?

a)

x

b)

y

c)

z

d)

k

13.

Which compound is NOT part of a DNA Nucleotide

a)

Adenine

b)

Phosphate

c)

Deoxyribose

d)

Ribose

e)

Thymine

14.

Compliment the following DNA


CCT -CTT -TAC

a)

GGA - GAA - ATG

b)

GGA - CTT - ATG

c)

CCT - GAA - ATG

15.

Transcribe the following DNA


TAC -TTA - CGA

a)

ATG - AAU - GCA

b)

ATG - AAT - GCA

c)

AUC - AAT - GCT

d)

AUG - AAU - GCU

16.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for making proteins
d)
because we eat it every day for energy
17.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
18.
Cells that have a true nucleus are called....
a)
eukaryotes
b)
prokaryotes
c)
unicellular
d)
multicellular
19.

Which of these shows an example of an insertion mutation?

a)

a

b)

b

c)

c

d)

d

20.

A model of transcription and a codon chart are shown.

Which amino acid would be coded first from the DNA strand

being transcribed?

a)

Cys

b)

Phe

c)

Ile

d)

Met

21.

What components make up the backbone of a DNA molecule?

a)

Purines and deoxyribose

b)

Pyrimidines and purines

c)

Deoxyribose and phosphate groups

d)

Phosphate groups and pyrimidines

22.

Which statement best describes a similarity among trees, cats,

and amoebas?

a)

They are prokaryotic organisms.

b)

They are classified as members of the same kingdom.

c)

They have genomes that consist of the same number of genes.

d)

They contain DNA composed of the same four types of nucleotides.

23.

Which statements explain how a mutation in a somatic cell is different

from a mutation that occurs in gametes?

a)

Somatic cell mutations occur in cells that give rise to gametes.

Gamete mutations occur in cells that result in apoptosis.

b)

Somatic cell mutations are maintained in the gene pool.

Gamete mutations are expelled from the gene pool.

c)

Somatic cell mutations are generally not passed to offspring.

Gamete mutations are usually passed to offspring.

d)

Somatic cell mutations will not be expressed by the individual that

contains the mutation.

Gamete mutations will be expressed by the individual.

24.

E. coli has three genes that each code for different enzymes that

break down lactose. Scientists conducted investigations about the

production of these enzymes using samples of E. coli. Their results are

shown in the table.

Which conclusion about the production of the enzymes can be

determined by analyzing the scientists’ results?

a)

Gene expression for the enzymes was controlled by the

temperature of lactose.

b)

The genes for the enzymes were expressed in equal amounts

during both experiments.

c)

Gene expression for the enzymes was controlled by the presence

of lactose.

d)

The genes for the enzymes were mutated before being expressed

by the presence of lactose.

25.

True or False: All of your body cells contain the same genes.

a)

True

b)

False

26.
Which of the following best explains the term gene expression?
a)
the production of proteins based on the genetic information in DNA
b)
the suppression of RNA polymerase
c)
the suppression of protein production
d)
the production of lipids based on the genetic information in DNA
27.

A molecule of DNA is a polymer composed of _____________.

a)

glucose

b)

amino acids

c)

fatty acids

d)

nucleotides

28.

Each nucleotide is composed of three parts. The picture shows a chain of 4 nucleotides linked together. What is the correct name of the molecule indicated?

a)

deoxyribose sugar

b)

nitrogenous base

c)

phosphate group

d)

hydrogen bond

29.

Which of these will complete the mRNA strand matching the DNA shown?

a)

C A G

b)

A U G

c)

G U C

d)

U A G

30.

Part of an important cellular process involving a DNA strand is modeled here.

What is the purpose of this cellular process?

a)

preserving genetic information for future generations

b)

deleting the information in the sequence produced from the DNA template

c)

transcribing information in the DNA sequence for use by the cell

d)

producing more nucleotides for the DNA sequence

31.

Bacteria and humans are similar in that they both _________.

a)

contain genetic material

b)

are single celled

c)

lack cell organelles

d)

are autotrophs

32.

The structure X is a ________.

a)

ribosome

b)

nucleus

c)

tRNA

d)

DNA

33.

Which reason explains why nerve cells function differently than muscle cells?

a)

In nerve cells all the genes are expressed.

b)

In muscle cells all the genes are expressed.

c)

In both kinds of cells the same genes are expressed.

d)

In both kinds of cells different genes are expressed.

34.

A substitution mutation that has no effect

on amino acids sequence

a)

Insertion Mutation

b)

Translocation

c)

Silent Mutation

d)

Deletion Mutation

35.

A nucleotide base is inserted or deleted shifting the entire DNA sequence. Entire protein will be changed.

a)

Substitution Mutation

b)

Silent Mutation

c)

Frameshift Mutation

d)

Translocation

36.

A frameshift mutation where a nucleotide base

is removed from the DNA sequence.

a)

Deletion Mutation

b)

Substitution Mutation

c)

Translocation

d)

Silent Mutation

37.

a)

F

b)

G

c)

H

d)

J

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