The validation of the given statement that DNA is a double stranded molecule and RNA is a single-stranded molecule has to be stated. Concept introduction: The process by which generation of new proteins in a cell takes place is known as protein synthesis. It consists of two stages, that is, transcription and translation. DNA molecules undergo transcription to yield RNA which in turn undergoes translation to form proteins.
The validation of the given statement that DNA is a double stranded molecule and RNA is a single-stranded molecule has to be stated. Concept introduction: The process by which generation of new proteins in a cell takes place is known as protein synthesis. It consists of two stages, that is, transcription and translation. DNA molecules undergo transcription to yield RNA which in turn undergoes translation to form proteins.
Solution Summary: The author explains that DNA is a double-stranded molecule, whereas RNA is only one strand. The validation of the given statement that base pairing occurs in both DNA and
Interpretation: The validation of the given statement that DNA is a double stranded molecule and RNA is a single-stranded molecule has to be stated.
Concept introduction: The process by which generation of new proteins in a cell takes place is known as protein synthesis. It consists of two stages, that is, transcription and translation. DNA molecules undergo transcription to yield RNA which in turn undergoes translation to form proteins.
(b)
Interpretation Introduction
Interpretation: The validation of the given statement that RNA and DNA molecules have about the same length has to be stated.
Concept introduction: The process by which generation of new proteins in a cell takes place is known as protein synthesis. It consists of two stages, that is, transcription and translation. DNA molecules undergo transcription to yield RNA which in turn undergoes translation to form proteins.
(c)
Interpretation Introduction
Interpretation: The validation of the given statement that base pairing occurs in both DNA and RNA has to be stated.
Concept introduction: The process by which generation of new proteins in a cell takes place is known as protein synthesis. It consists of two phases, that is, transcription and translation. DNA molecules undergo transcription to yield RNA which in turn undergoes translation to form proteins.
(d)
Interpretation Introduction
Interpretation: The validation of the given statement that DNA and RNA have the same sugar unit present in their structural backbones has to be stated.
Concept introduction: The process by which generation of new proteins in a cell takes place is known as protein synthesis. It consists of two stages, that is, transcription and translation. DNA molecules undergo transcription to yield RNA which in turn undergoes translation to form proteins.
bre
The reaction sequence shown in Scheme 5 demonstrates the synthesis of a
substituted benzene derivative Q.
wolsd works 2
NH2
NaNO2, HCI
(apexe) 13× (1
HNO3, H2SO4
C6H5CIN2
0°C
HOTE
CHINO₂
N
O
*O₂H (
PO
Q
Я
Scheme 5
2 bag abouoqmics to sounde odi WEIC
(i)
Draw the structure of intermediate O.
[2 marks]
to noitsmot od: tot meinedogm, noit so oft listsb ni zaupaib bas wa
(ii) Draw the mechanism for the transformation of aniline N to intermediate O.
Spoilage
(b)
[6 marks]
(iii) Identify the reagent X used to convert compound O to the iodinated compound
[tom E
P.
vueimado oilovonsa ni moitos nolisbnolov ayd toes ai tedw nisiqx
(iv) Identify the possible structures of compound Q.
[2 marks]
[2 marks]
[shom 2]
(v)
bus noires goiribbeolovo xnivollot adj to subora sidab
Draw the mechanism for the transformation of intermediate P to compound Q.
[5 marks]
vi
(vi) Account for the regiochemical outcome observed in the reaction forming
compound Q.
[3 marks]
PROBLEM 4 Solved
Show how 1-butanol can be converted into the following compounds:
a.
PROBLEM 5+
b.
d.
-C=
N
Which alkene is the major product of this dehydration?
OH
H2SO4
heat
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