The validation of the given statement that four hairpin loops are always present in a tRNA molecule has to be stated. Concept introduction: 2-D structure of tRNA is “clover leaf” like, a shape produced by the molecule’s folding and twisting into regions of parallel strands and regions of hairpin loops.
The validation of the given statement that four hairpin loops are always present in a tRNA molecule has to be stated. Concept introduction: 2-D structure of tRNA is “clover leaf” like, a shape produced by the molecule’s folding and twisting into regions of parallel strands and regions of hairpin loops.
Solution Summary: The author explains that the 2-D structure of tRNA is "clover leaf" like, a shape produced by the molecule's folding and twisting into regions of parallel strands.
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 22, Problem 22.113EP
(a)
Interpretation Introduction
Interpretation: The validation of the given statement that four hairpin loops are always present in a tRNA molecule has to be stated.
Concept introduction: 2-D structure of tRNA is “clover leaf” like, a shape produced by the molecule’s folding and twisting into regions of parallel strands and regions of hairpin loops.
(b)
Interpretation Introduction
Interpretation: The validation of the given statement that the anticodon site involves the hairpin loop opposite the open end has to be stated.
Concept introduction: 2-D structure of tRNA is “clover leaf” like, a shape produced by the molecule’s folding and twisting into regions of parallel strands and regions of hairpin loops.
(c)
Interpretation Introduction
Interpretation: The validation of the given statement that the amino acid attachment site involves the tRNAs 5' end has to be stated.
Concept introduction: 2-D structure of tRNA is “clover leaf” like, a shape produced by the molecule’s folding and twisting into regions of parallel strands and regions of hairpin loops. The 3' end of the open part of the cloverleaf structure is covalently bonded to the tRNA.
(d)
Interpretation Introduction
Interpretation: The validation of the given statement that the amino acid hydrogen bonds to its attachments site has to be stated.
Concept introduction: 2-D structure of tRNA is “clover leaf” like, a shape produced by the molecule’s folding and twisting into regions of parallel strands and regions of hairpin loops. The carboxyl group of the amino acid reacts with the 3' OH group on the terminal nucleotide.
Predict the major products of this reaction:
+ H
excess
NaOH
Δ
?
Note that the second reactant is used in excess, that is, there is much more of the second reactant than the first.
If there won't be any products, just check the box under the drawing area instead.
An organic chemistry Teaching Assistant (TA) suggested in your last discussion section that there is only one major organic product of the following reaction and
that this reaction builds a ring.
If the TA is right, draw the product in the drawing area below. If the TA is wrong, just check the box below the drawing area.
1. NaOMe
CH3O
N.
OCH3
?
2. H3O+
Complete the reaction in the drawing area below by adding the major products to the right-hand side.
If there won't be any products, because nothing will happen under these reaction conditions, check the box under the drawing area instead.
Note: if the products contain one or more pairs of enantiomers, don't worry about drawing each enantiomer with dash and wedge bonds. Just draw one molecule
to represent each pair of enantiomers, using line bonds at the chiral center.
+ More...
☐
☐
: ☐
+
G
1. NaOMe
Click and drag to start
drawing a structure.
2. H
+
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