Concept explainers
Interpretation:
The structural formula for the tetranucleotide
Concept introduction: Carbohydrates are defined as the polyhydroxy
There are five nitrogenous bases adenine, guanine, thymine, cytosine and uracil. A sugar unit attached to a base form a nucleoside unit. A nucleoside unit attached to a phosphate group together form a
In DNA the bases present are adenine
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Chemistry & Chemical Reactivity
- Write the base sequence for the mRNA that would be formed during transcription from the DNA strand with the base sequence GCCATATTG.arrow_forwarda Describe the three components of a nucleotide. b How does the structure of an RNA nucleotide differ from that of a DNA nucleotide?arrow_forwardDNA Complementarity Draw the complementary strand for the DNA shown.arrow_forward
- Is the trinucleotide in Problem 22-32 found only in DNA, found only in RNA, or found in both DNA and RNA? Explain the basis for your answer.arrow_forwardIn messenger RNA, a codon contains how many nucleotides? a.one b.two c.three d.fourarrow_forwardDraw the Lewis diagram for the DNA fragment that is complementary to the guanine-thymine-adenine DNA fragment.arrow_forward
- The DNA template strand segment 3TTCAAACCGTAC5 upon transcription and translation produces the amino acid sequence Lys-Phe-Gly-Met. What is the amino acid sequence produced if a frameshift mutation occurs in which the third A base in the original DNA sequence is removed?arrow_forwardDraw the complete structure of the ribonucleotide codon UAC. For what amino acid does this sequence code?arrow_forwardIn the flow of genetic information, what is meant by the terms transcription and translation?arrow_forward
- For what amino acids do the following ribonucleotide triplets code? (a) AAU (b) GAG (c) UCC (d) CAUarrow_forwardHuman brain natriuretic peptide (BNP) is a small peptide of 32 amino acids used in the treatment of congestive heart failure. How many nitrogen bases are present in the DNA that codes for BNP?arrow_forwardKynamro has the hydrogen bonding sequence: GCCUCAGTCTGCTTCGCACC. What is the sequence of nucleotides in the targeted mRNA?arrow_forward
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