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Total questions: 92

Worksheet time: 3570secs

Name
Class
Date
1.

Genome size doesn't vary much from species to species

a)

true

b)

false

2.

most of our DNA is made of genes

a)

true

b)

false

3.

only_ percent of dna content is protein coding genes

a)

2%

b)

4%

c)

6%

d)

50%

4.

_ are junk dna

a)

introns

b)

SiNEs

c)

LiNEs

d)

misc. heterochromatin

5.

DNA _

a)

replicates

b)

transcribes into protein

c)

translates into RNA

6.

DNA _ into RNA

a)

Transcribes

b)

Translates

7.

_ is taking nucleic acid and changing it into amino acid information

a)

transcription

b)

translation

c)

replication

8.

_ is taking nucleic acid information and rewriting it

a)

transcription

b)

translation

9.

_ are the building blocks of protein

(a)  

10.

what is the correct order?

a)

DNA-RNA-Polypeptide(amino acid

b)

RNA-Polypeptide(amino acid)-DNA

c)

RNA-DNA-Polypeptide(amino acid

d)

Polypeptide(amino acid)-RNA-DNA

11.

_ are 3 nucleotide sequences within a nucleic acid information that our ribosomes will use to determine which amino acid to place

(a)  

12.

Ribonucleic acid may have been the original genetic material

a)

true

b)

false

13.

_ has an additional -OH on 2' C

(a)  

14.

primes are counted from

a)

right to left

b)

left to right

15.

ribose is _ stable in a single-stranded structure

a)

more

b)

less

16.

Is RNA composed of nucleotides?

a)

Yes

b)

No

17.

Is DNA composed of nucleotides?

a)

Yes

b)

No

18.

Does dna have nucleotides joined by phosphodiester bonds@

a)

Yes

b)

no

19.

does RNA have nucleotides joined by phosphodiester bonds?

a)

yes

b)

no

20.

DNA is usually _ stranded

a)

double

b)

single

21.

RNA is usually _ stranded

a)

double

b)

single

22.

what is the secondary structure of DNA?

a)

double helix

b)

single helix

c)

many types

23.

what is the secondary structure of RNA

a)

many types

b)

single helix

c)

double helix

24.

DNA is

a)

stable

b)

easily degraded

25.

RNA is

a)

stable

b)

easily degraded

26.

rna has uracil instead of

a)

guanine

b)

cytosine

c)

adenine

d)

thyimine

27.

_ carries DNA copy to ribosome

a)

mRNA (messenger rna)

b)

tRNA (transfer RNA)

c)

rRNA (ribosomal RNA

28.

_ transfers amino acids to ribosome

a)

tRNA (transfer RNA)

b)

mRNA (messenger RNA)

c)

rRNA (ribosomal RNA)

29.

_ is the primary component of ribosomes

a)

rRNA (ribosomal RNA)

b)

tRNA (transfer RNA)

c)

mRNA (messenger RNA)

30.

_ determines which amino acids should be appropriately placed

(a)  

31.

the _ does translation

(a)  

32.

_ are actually composed of RNA and some proteins

(a)  

33.

all forms of rna exist as a single strand

a)

true

b)

false

34.

_ are made by rna polymerase I

a)

rRNAs

b)

DNA

35.

_ are used to build phylogenetic trees

a)

rRNA

b)

mRNA

c)

tRNA

36.

rna is...

a)

not very conserved

b)

highly conserved

37.

_ are transcribed by RNA polymerase III

a)

tRNAs

b)

mRNAs

c)

rRNAs

38.

_ is essential for proper protein synthesis

a)

tRNA

b)

rRNA

c)

mRNA

39.

_ are the core decoders of genetic code

a)

tRNAs

b)

rRNAs

c)

mRNAS

40.

_ match onto a codon of RNA and that proper binding between them determines which tRNA will get to fit in that particular spot

(a)  

41.

_ is read during the process of translation

(a)  

42.

_ play important roles in RNA splicing during RNA maturation

(a)  

43.

messenger RNA forms a...

a)

hairpin

b)

single helix

44.

during transcription, one gene is copied into

a)

mRNA

b)

tRNA

c)

rRNA

45.

genes are copied thanks to _

(a)  

46.

mRNA is _ original DNA message

a)

complementary to

b)

the same as

47.

transcription steps order GO

a)

initiation, elongation, termination

b)

elongation, termination, initiation

c)

termination, elongation, initiation

48.

RNA is made

a)

5' to 3'

b)

3' to 5'

49.

RNA is made

a)

from one DNA strand

b)

from two dna strands

50.

the strand being copied in transcription is the _ strand

a)

template strand

b)

non-template strand

51.

the strand not being copied during transcription is the _ strand

a)

non-template

b)

template

52.

the non-template strand is also known as the _strand

(a)  

53.

_ contains gene sequence

a)

coding region

b)

promoter

c)

enhancer

d)

termination site

54.

_: upstream region for transcription factors to bind

a)

promoter

b)

coding region

c)

enhancers

d)

termination site

55.

_: upstream or distant regions that bind activators

a)

enhancers

b)

termination site

c)

promoter

d)

coding region

56.

_: end of transcription, occurs downstream from the start site

a)

coding region

b)

promoter

c)

enhancers

d)

termination site

57.

downstream is in the closer to the _ prime

a)

5'

b)

3'

58.

rna synthesis starts at the _

a)

transcription initiation site

b)

transcription termination sequence (terminator)

59.

rna syntehsis stops after a _

a)

transcription initiation site

b)

transcription termination sequence (terminator)

60.

just upstream of the transcription initiation site is the _

(a)  

61.

what are the two regions?

(a)  

62.

_ makes rRNA

a)

RNA polymerase I

b)

RNA polymerase II

c)

RNA polymerase III

63.

_ makes mRNA

a)

RNA polymerase II

b)

RNA polymerase I

c)

RNA polymerase III

64.

_ makes tRNA

a)

RNA polymerase III

b)

RNA polymerase II

c)

RNA polymerase I

65.

prokaryotes have _ RNA polymerase(s)

a)

1

b)

2

c)

3

66.

_ activate and repress transcription

(a)  

67.

steps of transcription

a)

-positioning of RNA pol at initiation site

-unwinding DNA

-starting transcription

1.

initiation

b)

growth of RNA strand

2.

elongation

c)

polymerase "derails"

3.

termination

68.

RNA polymerase has _ activity

(a)  

69.

only about _ nucleotides are denatured during initiaition

a)

25

b)

50

c)

30

d)

45

70.

during initiation, the _ reforms behind the polymerase

a)

DNA double helix

b)

RNA single strand

c)

DNA single strand

d)

RNA double helix

71.

RNA polymerase needs a primer

a)

true

b)

false

72.

RNA polymerase can start transcription by using a free NTP to start the RNA strand

a)

true

b)

false

73.

During initiation, polymerase takes off and leaves the associated TF behind. they can be reused.

a)

true

b)

false

74.

_ is similar to DNA replication

(a)  

75.

during elongation, the new nucleotides are added to the _ -OH

a)

3

b)

5

76.

RNA polymerase has proofreading ability

a)

true

b)

false

77.

during _, RNA polymerase reaches terminator sequence

(a)  

78.

rna gradually gets _ as it marches down the gene

a)

shorter

b)

longer

79.

the primary mRNA transcript must be processed before being used for translation

a)

true

b)

false

80.

_ can control binding of the promoter by activating or repressing transcription factors

(a)  

81.

_ regulate gene expression by activating transcription

(a)  

82.

_ inhibits rna polymerase binding

(a)  

83.

negative regulatory sequences are known as _

(a)  

84.

DNA has to stay linear

a)

true

b)

false

85.

an enhancer is a

a)

DNA sequence

b)

transcription factor

86.

a protein (_) that activates RNA transcription is an activator

a)

transcription factor

b)

DNA sequence

87.

a silencer is a _

a)

DNA sequence

b)

transcription factor

88.

a proteins (_) that represses RNA transcription is a repressor

a)

transcription factor

b)

DNA sequence

89.

_ are the basic package for promoters. has a TATA box. allows for a low level of transcription

(a)  

90.

Rna polymerase II is associated with the_

(a)  

91.

_ binds directly to TATAA sequence and positions RNA pol II at the transcription initiation site

(a)  

92.

transcription is initiated at _ promoters

(a)  

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