Compare basing on the text the DNA and the RNA.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Exercise 2
The DNA is a very long molecule which is composed of two complementary banks binding to
each other by hydrogen bonds. Two pairs of nitrogenous bases make these hydrogen bonds, the
first pair is composed of guanine and cytosine, the second pairs is composed of the thymine and
the adenine. The RNA is another nucleic acid which is usually composed of a simple bank
molecule; it is shorter and has instead of the thymine, a nitrogenous base Uracil. The nucleic acid
can be separate DNA by the centrifugation based on the density of the molecules which is higher
in DNA after this RNA of separation is subjected to another method of separation which indicates
the presence in the cell of three kinds of RNA.
a- Compare basing on the text the DNA and the RNA.
b- In your opinion, which of the molecules of DNA and RNA has more raised density? justify.
Second letter
A
UUU
Uuc)
UUA)
UUG Leu
CUU
UCU
UGU
UAU)
UAC Ty
UAA Stop
UAG Stop
Phe
UGC Cys
UGA Stop
UCC
UCA
UCG
UGG Trp
G
CCU
CAU)
CAC His
CAA)
CGU)
U
CUC
Leu
CC
CGC
Arg
Pro
CUA
CCA
CGA
CUG,
CCG
CAG Gin
CGG
AUU
AUC le
AUA
AUG Met
AAU
Asn
AAC)
Thr
AAA
AGU
Ser
AGC
ACU
ACC
AÇA
AGA
ACG
AAG Lys
AGG
Arg
GUU
GCU
GAU)
GGU)
GUC
Val
GUA
GACAnp
Ala
GCC
GGC
GGA Gly
GGG
GCA
GAA )
GUG
GCG
GAG Glu
First letter
Third letter
Transcribed Image Text:Exercise 2 The DNA is a very long molecule which is composed of two complementary banks binding to each other by hydrogen bonds. Two pairs of nitrogenous bases make these hydrogen bonds, the first pair is composed of guanine and cytosine, the second pairs is composed of the thymine and the adenine. The RNA is another nucleic acid which is usually composed of a simple bank molecule; it is shorter and has instead of the thymine, a nitrogenous base Uracil. The nucleic acid can be separate DNA by the centrifugation based on the density of the molecules which is higher in DNA after this RNA of separation is subjected to another method of separation which indicates the presence in the cell of three kinds of RNA. a- Compare basing on the text the DNA and the RNA. b- In your opinion, which of the molecules of DNA and RNA has more raised density? justify. Second letter A UUU Uuc) UUA) UUG Leu CUU UCU UGU UAU) UAC Ty UAA Stop UAG Stop Phe UGC Cys UGA Stop UCC UCA UCG UGG Trp G CCU CAU) CAC His CAA) CGU) U CUC Leu CC CGC Arg Pro CUA CCA CGA CUG, CCG CAG Gin CGG AUU AUC le AUA AUG Met AAU Asn AAC) Thr AAA AGU Ser AGC ACU ACC AÇA AGA ACG AAG Lys AGG Arg GUU GCU GAU) GGU) GUC Val GUA GACAnp Ala GCC GGC GGA Gly GGG GCA GAA ) GUG GCG GAG Glu First letter Third letter
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