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Worksheets12.1 & 12.3 DNA and the Central Dogma
Total questions: 26
Worksheet time: 27mins
Name
Class
Date
1.
What enzyme is responsible for adding nucleotides to the growing RNA strand?
a)
DNA Polymerase
b)
RNA Primase
c)
RNA Polymerase
d)
Topoisomerase
2.
What RNA transcript would be produced by the following DNA sequence?
5'-CCGTAC-3'
5'-CCGTAC-3'
a)
5-GTACGG-3'
b)
5'-GGCAUG-3'
c)
5'-GUACGG-3'
d)
5'-GGCATG-3'
3.
In translation, the language of the bases is turned into the language of ___.
a)
lipids
b)
amino acids
c)
nucleic acids
d)
nucleotides
4.
Where does transcription take place?
a)
nucleus
b)
cytoplasm
c)
rough ER
d)
mitochondrion
5.
Where does translation take place?
a)
nucleus
b)
smooth ER
c)
lysosome
d)
cytoplasm
6.
What is the name for this RNA --> proteins?
a)
translation
b)
transcription
c)
replication
d)
none of these
7.
What is the name for this DNA --> RNA?
a)
translation
b)
transcription
c)
replication
d)
none of these
8.
The genetic code is read three "letters" at a time, so that each "word" is three bases long and corresponds to a single amino acid. What is each three-letter "word" in mRNA know as?
a)
an anitcodon
b)
a codon
c)
a decoding band
d)
a gene
9.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
10.
Looking at the mRNA strand, how many codons are there?
UCGAGA
UCGAGA
a)
8
b)
4
c)
2
d)
1
11.
This is the name of a long strand of RNA nucleotides that are formed to match to one strand of DNA. They also travel from the nucleus to the ribosome to direct the making of a specific protein.
a)
tRNA
b)
rRNA
c)
DNA
d)
mRNA
12.
Coding sequences that are NOT in the final mRNA.
a)
Okazaki Fragments
b)
Exon
c)
Codon
d)
Intron
13.
The _______ represents the shape of the dna molecule.
a)
Helix
b)
Double Helix
c)
Ladder
d)
Quartenary
14.
What does RNA contain that DNA does not?
a)
Thymine
b)
Uracil
c)
Adenine
d)
Love
15.
What is the correct DNA complementary base to
AAT CGT TAC
AAT CGT TAC
a)
AAT GCA TAC
b)
TTA CGT ATG
c)
TTA GCA ATG
d)
UUA GCA AUG
16.
what does mRNA do?
a)
carry info from genes to ribosomes
b)
carry amino acids to ribosomes
c)
help with RNA splicing
d)
make up ribosomes
17.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
18.
What base does Cytosine pair with?
a)
Guanine
b)
Thymine
c)
Adenine
d)
Ribose
19.
What base does Adenine pair with?
a)
Guanine
b)
Cytosine
c)
Thymine
d)
Deoxyribose
20.
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
21.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
22.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
23.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
24.
Amino acids are joined together in order to form
a)
DNA
b)
ribosomes
c)
proteins
d)
RNA
25.
True or false: RNA is double-stranded.
a)
true
b)
false
c)
it depends on the type
26.
tRNA
a)
the complete genetic material contained in an individual
b)
Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
c)
Transfer RNA; type of RNA that carries amino acids to the ribosome
d)
A chain composed of two or more amino acids linked together by peptide bonds
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