Name
Class
Date.
13.1
1. Complete the table to contrast the structures of DNA and RNA.
ry
.~ ,;.
.•
.~
~.
.!
."
~
Sugar
.;.
Number of Strands
",
' •..•• ~~.".;I,
.
;"·1'ft''''.:r';:'~.
;1,
Bases
DNA
RNA
2. On the Jines provided, identify each kind ofRNA.
a.ire(
Y\.S
if:
r
c.
For Questions 3-7, complete each statement by writing the correct word or words.
3. The process of using DNA to produce complementary RNA molecules is called
-rearl so
4. The sequence of
I
p '/11)(\
.
I
ha ,se
in mRNA complements the sequence in the DNA template.
<:>
5. In eukaryotes, RNA is formed in the
6. The enzyme
(2f\J!t fJlyVYItrtlS
~
()ucl-e LL')
and then travels to the
Ct boSome ~
binds to DNA during transcription.
7. RNA polymerase binds to regions of DNA called
transcription.
OrofYIo-te.f'
I
5
, which are "start"
signals for
8. The chart below shows key terms from the lesson with their definitions. Complete the chart by writing a
strategy to help you remember the meaning of each term.
Messenger RNA
alV It
(n ((IV
11j
-Ail
a.ssev;.t(/~
~(Uvi
c tAJt e»
profe/As
i2N;1 ;;01~-~J;~
-'UiJ
tJV1I-~
Ribosomal RNA
fY'J J e
pf8telilS
mq)(e
a)seMb Ie
are
cI
ur
r/fx5S6mC
~I
OY) -
R~~~?,tde~:~~
~~~'~'ftfo'(4~Adl'>
;'lT~
d
-------:-a~--enz-~-(--Y_hJ
- a.rJe>·j;.v~ -si;~I\;f.· j
RNA
5 ...
v)et
RNA polymerase
(jfJ'l
S'h()J\Y
10
CI/1
make !CiliA.
~~ ....RNA f'J1~/eLuJ~;.·arc
bd!l- 0> t( i-e =r I de,
- -'ff;(e~S '0~h,
US I/l)
Transcription
W14ie.. ..
;hd-- -'Iv;'~fet?- (J~;~;'
t£M'
(2N1JmJjc(ld~
f D Yt.. e r /~o S{) 111 [J :>
ao ,~
Cf5
Transfer RNA
b~NJ\ ~~~1ya1'!hesis
In DNA replication a cell copies its DNA. Both strands ofthe double helix are used as templates to make
complementary, or matching, strands of DNA. In DNA transcription a single strand of DNA is used as a
template to generate a strand of mRNA
Follow the directions.
9. Fill in the missing information. One row has been completed for you.
~::':.);1t"'V
~
.••~c.>::It·r..·
:-nG':"I'i~·."~.
-;or,wl~;~';:;oc:.::-',I"\'!:)N;".;r'lt;s,:l4";l:1',.,.~.);o,;~:<::!Z;:~;..,~",r..':~'~.r<:,."1I"",~';OO:""~=r.';C:!'~.~...(¢;=~n-~~:~~~~,,-:,"r-r·
Template
Complementary DNA
MTGCC
TTACGG
Cc.G
/G
L
.:c
GGCGGC
G,
fJ-(
IJ-TC
/cTbA-6,
AGACTC
c TArTe..
GI4 (J-bN;6
b//J-C
GATMG
T,
CTGb (TACA
..
1.•;;..;-
'':'7~.·~,_,~~:;,,;
<r:,'"G'"'.I'.;:;~>:I'-~"""":",":~",.-
.,!"t':;.-~ .'
:15'.- ,,:~:;;:~ ..•
Messenger RNA (mRNA)
MUGCC
00,C GGL..
ACGUAG
U eLf GA G
GA();fAG
CUGGCUACA
_~.v:.."
In transcription, RNA polymerase separates the two DNA strands. RNA then uses one strand as a template to
make a complementary strand ofRNA. RNA contains the nucleotide uracil instead of the nucleotide thymine.
Follow the directions.
10. Label the RNA
11. Label the DNA.
12. Use the key to label the missing nucleotides marked on the diagram.
RNA polymerase
Key
DNA
A= Adenine
C = Cytosine
G = Guanine
T=Thymine
RNA
=
A Adenine
C = Cytosine
G = Guanine
U = Uracil
Answer the questions. Circle the correct answer.
13. In DNA,
adenine
is alwa s aired with cytosine.
guanrne
_______
15. In DNA,
uracil
-'replaces thymine.
cytosine
is pai
ith adenine.
thymine
16. What is the mRNA if the complementary DNA is TCTGAG?
17. What does a cell copy in DNA replication?
uracil
adenine
guanine
AbA c LA C
_---'b=--N_~-'---_
18. How many strands of DNA are used to make com lementary strands of DNA? _-'Q=..!....Vl_~=-_
19. How does the cell make RNA?
ra I'd)
a ~/~tc:
fe m JJ(..
fo