Sequence of bases on the DNA template strand from which the hnRNA was synthesized has to be drawn. Concept introduction: hnRNA can be formed by the transcription of DNA. Transcription process occurs in nucleus. DNA strand contains a segment called “gene” which contains the base sequences for production of hnRNA.
Sequence of bases on the DNA template strand from which the hnRNA was synthesized has to be drawn. Concept introduction: hnRNA can be formed by the transcription of DNA. Transcription process occurs in nucleus. DNA strand contains a segment called “gene” which contains the base sequences for production of hnRNA.
Definition Definition A complex molecule that makes up a fundamental unit of a DNA or RNA molecule. Nucleotides are composed of a sugar, a nitrogenous base, and a phosphoric acid.
Chapter 11, Problem 11.112EP
(a)
Interpretation Introduction
Interpretation: Sequence of bases on the DNA template strand from which the hnRNA was synthesized has to be drawn.
Concept introduction: hnRNA can be formed by the transcription of DNA. Transcription process occurs in nucleus. DNA strand contains a segment called “gene” which contains the base sequences for production of hnRNA.
(b)
Interpretation Introduction
Interpretation: The sequence of bases on the DNA informational strand associated with the DNA template strand has to be stated.
Concept introduction: hnRNA can be formed by the transcription of DNA. Transcription process occurs in the nucleus. DNA strand contains a segment called “gene” which includes the base sequences for production of hnRNA. Information strand is not involved in hnRNA synthesis; it is the complementary strand of the DNA template strand.
(c)
Interpretation Introduction
Interpretation: The sequence of bases in the mRNA produced from the hnRNA has to be determined.
Concept introduction: hnRNA can be formed by the transcription of DNA. mRNA carries instructions for the protein synthesis. hnRNA molecules are converted to mRNA by splicesosome.
(d)
Interpretation Introduction
Interpretation: The sequence of amino acids in the peptide synthesized from the mRNA has to be stated.
Concept introduction: A three-nucleotide sequence in an mRNA molecule that codes for a specific amino acid are called a codon. There are 64 possible codons which are formed by the combination A, U, C, and G.
Draw the Fischer projection of D-fructose.
Click and drag to start drawing a
structure.
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Consider this step in a radical reaction:
Y
What type of step is this? Check all that apply.
Draw the products of the step on the right-hand side of the drawing area
below. If more than one set of products is possible, draw any set.
Also, draw the mechanism arrows on the left-hand side of the drawing
area to show how this happens.
ionization
propagation
initialization
passivation
none of the above
22.16 The following groups are ortho-para directors.
(a)
-C=CH₂
H
(d)
-Br
(b)
-NH2
(c)
-OCHS
Draw a contributing structure for the resonance-stabilized cation formed during elec-
trophilic aromatic substitution that shows the role of each group in stabilizing the
intermediate by further delocalizing its positive charge.
22.17 Predict the major product or products from treatment of each compound with
Cl₁/FeCl₂-
OH
(b)
NO2
CHO
22.18 How do you account for the fact that phenyl acetate is less reactive toward electro-
philic aromatic substitution than anisole?
Phenyl acetate
Anisole
CH
(d)
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