E. How many nucleotides would be required to generate a polypeptide that is 15amino acids long? This requires knowing how many nucleotides of DNA code forone amino acid.F. Assuming that there are between 20,000-25,000 genes in the human genome, doyou think there are 1) fewer, 2) approximately the same number, or 3) moreproteins in the human genome? Explain your answer.

The genetic code is a sequence of three-letter combinations of nucleotides called codons, each…

Answered: E. How many nucleotides would be…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Would you be more likely to find single nucleotidepolymorphisms (SNPs) in the protein-coding or in thenoncoding DNA of the human genome?
Compute the [A + C]/[T or U] +G] ratios of the DNA and RNA models. Do you expect the same values for other DNA and RNA models that will be constructed, for instance? Why? A= 3 T=3 U=2 C= 4 G= 4
Assume 2x108 reads of 75 bps long are obtained from a next-generation sequencing experiment to sequence a human genome. Suppose the length of the human genome is 3x109 bps. What is the depth (i.e., coverage) of the sequencing?
Where do you expect to see multiple “Ns” within a sequencing read? a)Within the first 25 nucleotides from the beginning of the sequence and from the last 25 nucleotides of the sequence. b)In the middle of the sequence and from the last 25 nucleotides of the sequence. d c)From the last 25 nucleotides of the sequence. d)Within the first 25 nucleotides from the beginning of the sequence. e)In the middle of the sequence.
About 60% of the base pairs in the human genome are AT. If the human genome has 3.2 billion base pairs of DNA, about how many times will the following restriction sites be present? a. BamHI (recognition sequence is 5′–GGATCC–3′) b. EcoRI (recognition sequence is 5′–GAATTC–3′) c. HaeIII (recognition sequence is 5′–GGCC–3′)
You have sequenced the genome of the bacterium Salmonella typhimurium and find a protein that is 100 percent identical to a protein in the bacterium Escherichia coli. When you compare nucleotide sequences of the S. typhimurium and E. coli genes, you find that their nucleotide sequences are only 87 percent identical. How would you interpret the observations? Please make sure to select ALL correct answer options. Because genetic code is redundant, changes in the DNA nucleotide sequence can occur without change to its encoded protein. Due to the flexibility in the third positions of most codons, the DNA sequence can accumulate changes without affecting protein structure. Natural selection will eliminate many deleterious amino acid changes. This will reduce the rate of change in the amino acid sequence and lead to sequence conservation of the proteins. Protein sequences are expected to evolve and diverge more slowly than the genes that encode them.
While the three previous paragraphs put on some details about enzymes, a Russian physician and chemist named Phoebus Levene focused on the three major components of a single nucleotide (phosphate, pentose sugar, and nitrogenous base) in 1919. He was also the first to discover the carbohydrate component of RNA (ribose), and carbohydrate component of DNA (deoxyribose). Years later, Levene finally identified how DNA and RNA molecules are put together Then in 1937, Hans Krebs discovered the most famous (probably) process that occur during cell respiration. This series of chemical reactions has three names such as the Citric Acid Cycle, Tricarboxylic Acid Cycle and Krebs Cycle. In this process, glucose and oxygen is converted to carbon dioxide, water, and energy. While working on bacterial samples, Oswald Avery first suggested in 1944 that the genetic material of the cell was possibly the deoxyribonucleic acid. In the middle of the 20th Century, Erwin Chargaff began to oppose Levene's…
The amino acid sequences of peptide fragments obtained from a normal protein were compared with those obtained from the same protein synthesized by a defective gene. They were found to differ in only one peptide fragment. Their amino acid sequences are shown here: Normal: Gln-Tyr-Gly-Thr-Arg-Tyr-Val Mutant: Gln-Ser-Glu-Pro-Gly-Thr a. What is the defect in DNA?b. It was later determined that the normal peptide fragment is an octapeptide with a C-terminal Val-Leu. What is the C-terminal amino acid of the mutant peptide?
Let’s say that you want to find out the difference in nucleotide sequence among two DNA strands, one of which is isolated from the liver of a liver cancer patient and the other one is isolated from the liver of a healthy individual. How you can do that, please explain in details

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