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Worksheets

SB2 and SB3

Total questions: 85

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

What do organisms have in common?

a)

DNA sequence made of A,C,T,G

b)

DNA sequence is in the same order

c)

DNA sequence between organisms have nothing in common

d)

DNA sequence made of A,U,C,T,G

2.

What is "A"?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

3.

What is "B"?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

4.

What is "C"?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

5.

What is the molecule in the image?

a)

Nucleotide

b)

Deoxyribose Sugar

c)

Nitrogenous base

d)

Phosphate

6.

What is the complimentary sequence of the following sequence:

GATCAG

a)

TGACAT

b)

GACATG

c)

CTAGTC

d)

CGACTA

7.

What do the dotted lines between the nitrogenous bases (A,T,C,G) represent in the image provided?

a)

Covalent bonds

b)

Ionic bonds

c)

Peptide bonds

d)

Hydrogen bonds

8.

What is bonded to Adenine in the image to form a section of the DNA molecule?

a)

Guanine and Phosphate group

b)

Cytosine and Deoxyribose sugar

c)

Thymine and Deoxyribose sugar

d)

Deoxyribose sugar and Phosphate group

9.

What determines the specific traits in an organism?

a)

The number of carbons in the DNA molecule.

b)

The number of hydrogen bonds that hold the strands of DNA together. 

c)

The sequence of nucleotide bases in the DNA molecule.

d)

The sequence of phosphates along each DNA strand. 

10.

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

11.

Guanine bonds with ______________.

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Thymine

12.
This picture is illustrating the ____ nature of DNA.
a)
anti-parallel
b)
deoxyribosic
c)
helical
d)
radioactive
13.

Which enzyme is responsible for adding nucleotides?

a)

Topoisomerase

b)

DNA Polymerase

c)

Ligase

d)

Primase

14.
Which enzyme fixes the Okazaki fragments in the lagging strand?
a)
Helicase
b)
Polymerase
c)
Ligase
d)
Primerase
15.
Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
16.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
17.

Okazaki fragments are found on the _______________ strand

a)

Leading

b)

Lagging

18.

DNA Replication occurs during which phase of the cell cycle?

a)

G 1 phase

b)

S phase

c)

G 2 phase

d)

Mitotic phase

19.

Is this a strand of DNA or RNA?

TACGGACTA

a)

DNA

b)

RNA

c)

Impossible to tell

20.

Select the RNA sequence or sequences for Glutamine.

a)

CGU

b)

CAG

c)

CUA

d)

CAA

21.

DNA is used as a guide to rewrite the genetic code into RNA. RNA can then leave the nucleus.

a)

This is Transcription.

b)

This is Translation.

22.

RNA goes to the ribosome where it is used as a guide to attach amino acids together. Amino acids in a chain is a protein

a)

This is Transcription.

b)

This is Translation.

23.

Find the amino acid that this segment of RNA codes for: GAC

a)

Arginine

b)

Asparagine

c)

Aspartic Acid

d)

Alanine

24.

In RNA, C pairs with G , and A pairs with

a)

U

b)

A

c)

C

d)

T

25.

In DNA, C pairs with G , and A pairs with

a)

U

b)

A

c)

C

d)

T

26.

Find the amino acid that this segment of RNA codes for: UUG

a)

Glycine

b)

Asparagine

c)

Lysine

d)

Leucine

27.

A codon is a group of ___ RNA bases.

a)

1

b)

3

c)

5

d)

6

28.

Proteins are mode of

a)

nucleotides

b)

glucose

c)

fatty acids

d)

amino acids

29.
What type of RNA carries the DNA message out of the nucleus to the ribosomes?
a)
mRNA
b)
tRNA
c)
RNA
d)
DNA
30.
When the RNA gets to the ribosomes, which molecule transfers to the mRNA to amino acids?
a)
DNA
b)
mRNA
c)
tRNA
d)
Replicated RNA
31.
Which of the following is the sugar found in RNA?
a)
Ribose
b)
Maltose
c)
Deoxyribose
d)
Amylose
32.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
33.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA  ACT
a)
4
b)
3
c)
6
d)
2
34.
Does the order of amino acids in a protein matter?
a)
YES!
b)
NO!
35.
Why are insertion and deletion mutations so harmful?
a)
They change all of the codons from the mutation on down the line, which changes the amino acid sequence
b)
They insert things that an organism doesn't need.
c)
They often delete things that organisms need.
d)
Insertion and deletions are not any more harmful than substitution mutations.
36.
What is the name given to part of a DNA molecule that codes for a protein?
a)
Glucose
b)
Chromosome
c)
Gene
d)
Phosphate
37.
How would the DNA sequence GCTATA be transcribed to mRNA?
a)
GCUAUA
b)
CGATAT
c)
CGAUAU
d)
GCUTUT
38.

A segment of a DNA strand has the following bases: TAC GAT. What is the complementary strand of DNA?

a)

UAG CA

b)

TAG CAT

c)

ATG CTA

d)

AUG CUA

39.

What is a codon?

a)

three genes in a stand of DNA

b)

a segment of a chromosome that codes for the production of a mRNA molecule

c)

three amino acids in a row in a protein

d)

three bases of mRNA that codes for a specific amino acid

40.

The process used by cells to convert the mRNA "message" into a sequence of amino acids is

a)

translation

b)

transcription

c)

mitosis

d)

replication

41.

Which brings amino acids to the ribosomes?

a)

mRNA

b)

tRNA

c)

rRNA

d)

aRNA

42.
Where do mutations occur?
a)
DNA and RNA
b)
DNA 
c)
RNA
d)
mRNA and tRNA
43.

What type of gene mutation has occurred here?

T-G-A-C-C-A

T-G-A-C-C-A-A

a)

Substitution

b)

Deletion

c)

Insertion

44.

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTACGCAAC. This is an example of ___ mutation.

a)

Substitution

b)

Insertion

c)

Inversion

45.

Deletion

a)

A

b)

B

c)

C

46.

Substitution

a)

A

b)

B

c)

C

47.

Insertion

a)

A

b)

B

c)

C

48.

What are the three possible consequences to changes in DNA? [check all that applies]

a)

Improved trait

b)

removal of trait

c)

No change (neutral)

d)

Harmful trait

49.

What is a GMO?

a)

An organism that has had its DNA modified by humans

b)

An organism missing a chromosome

c)

Epigenetics

d)

A genetically identical organism

50.

Which of the following best describes a mutagen?

a)

Direct manipulation of an organism's genes using biotechnology.

b)

Any organism whose genetic material has been altered using genetic engineering techniques.

c)

An agent which can change the structure of DNA, causing a mutation.

51.

Selective breeding is...

a)

a process to create an organism with desired traits from parents with those desired traits

b)

natural method of producing offspring with desired traits

c)

creating a new species

d)

making organisms reproduce during times of stress

52.

Which improvement to agriculture is most likely a result of biotechnology?

a)

increased land

b)

increased fertilizer

c)

increased productivity

d)

increased demand for crops

53.

Cloning

a)

a simple cell in the body that is able to develop into any one of various kinds of cells (such as blood cells, skin cells, etc.)

b)

a random change to a gene that results in a new trait.

c)

propagate (an organism or cell) to make an identical copy of

54.

Mutation

a)

a toxic chemical that causes damage to an organism's DNA.

b)

a random change to a gene that results in a new trait.

c)

the action or process of regrowth; in particular the formation of new animal or plant tissue

55.
Whose blood was found at the crime scene?
a)
John
b)
Lisa
c)
Bob
d)
Sure
56.
Which man is the father of the child?
a)
1
b)
2
c)
3
d)
4
57.
Which two bear species are most closely related?
a)
Bear 1 and Bear 2
b)
Bear 1 and Bear 3
c)
Bear 2 and Bear 3
d)
There’s no way to tell
58.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
59.

What belongs in the last box?

a)

RR

b)

Rr

c)

rr

d)

ff

60.

Look at the punnett square shown. What allele pair would replace the "?"

a)

WW

b)

Ww

c)

ww

61.

Look at the punnett square. What is the probability that the offspring would have homozygous alleles for the trait?

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

62.
Both parents in this Punnet square
a)
are homozygous dominant
b)
are homozygous recessive
c)
are heterozygous
d)
have blue eyes
63.

If you cross a black chicken with a white chicken, only black and white checkered chickens would be produced. What kind of inheritance pattern does this follow?

a)

Incomplete dominance

b)

Codominance

64.

This is an example of ---

a)

Incomplete dominance

b)

Codominance

65.

What does this Punnett square and the probabilities of the ofspring represent?

a)

incomplete dominance

b)

codominance

66.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
67.
AA and Aa always show up as
a)
dominant
b)
recessive
68.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
69.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
70.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
71.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
72.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender 
d)
all of the above
73.

In humans, curly hair is dominant to straight hair, and wavy hair is an intermediate texture. Which explanation most likely accounts for wavy hair?

a)

a mutation occurred, producing wavy hair

b)

a different set of genes resulted in wavy hair

c)

inheritance occurred through incomplete dominance

d)

inheritance occurred as a result of a gene from only one parent

74.

In chickens, black is co dominant with white feathers. Which cross would result in 50% black and white feathers?

a)

BW x BW

b)

BB x WW

c)

BW x WW

d)

WW x BB

75.

What are the genotypes for type A blood?

a)

IAIA

b)

IAIB

c)

IAi

d)

IBIB

e)

ii

76.

A child has blood type AB. Which blood types would his parents most likely have?

a)

B and O

b)

O and A

c)

A and B

d)

AB and O

77.
In flowers, 2 pink (RW) flowers are crossed. What are the genotypes and phenotypes of their offspring?
a)
100% pink (RW)
b)
50% pink (RW); 25% white (WW); 25% red (RR)
c)
75% pink (RW); 25% white (WW)
d)
100% red (RR)
78.
A father that has blood type O is crossed with a blood type O mother. What will be the genotype of the offspring?
a)
50% AB; 50% OO
b)
25% AB,  25% AO, 25% BO, 25% OO
c)
25% AA, 25% BB, 25% AB, 25% OO
d)
100% OO
79.

Using the diagram, which type of asexual reproduction is being demonstrated by the bacterial cell?

a)

Binary Fission

b)

Budding

c)

Spore Formation

d)

Regeneration

80.
If an organism reproduces asexually, its offspring will most likely be:
a)
produced as a result of fertilization
b)
Genetically identical to the parent
c)
Genetically different from each other
d)
Produced from specialized cells known as gametes
81.
What are some of the facts about asexual reproduction?
a)
Takes only one mate to reproduce and takes a longer time to reproduce
b)
Takes a shorter amount of time to reproduce and it takes two mates to reproduce
c)
Reproduces diverse offspring and takes a longer time to reproduce
d)
Takes only one mate to reproduce and takes a shorter time to reproduce
82.
What are some of the facts about sexual reproduction?
a)
Takes two mates to reproduce and takes a longer time to reproduce
b)
Takes one mate to reproduce and takes a shorter amount of time to reproduce
c)
Takes two mates to reproduce and takes a shorter amount of time to reproduce
d)
Takes one mate to reproduce and takes a shorter amount of time to reproduce
83.
What is one disadvantage of sexual reproduction?
a)

Only one parent needed

b)

Offspring are exact copies of parents

c)

Happens very quickly

d)

Needs two parents

84.
When a starfish grows a new body off a broken arm, what kind of reproduction is this?
a)
Sexual
b)
Differentiation
c)
Asexual 
d)
Specialization
85.

What is a gamete?

a)

sex cell

b)

human cells

c)

plant cells

d)

plant and animal cells

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