Certainly! Here's the transcribed text and descriptions suitable for an educational website: --- **Transcription of the Educational Text** 4. A single base addition and a single base deletion approximately 15 bases apart in the mRNA specifying the protein lysozyme from the bacteriophage T4 caused a change in the protein from its wild-type composition: ...Lys-Ser-Pro-Ser-Leu-Asn-Ala-Ala-Lys... to the double mutant form: ...Lys-Val-His-Leu-Met-Ala-Ala-Lys... (a) From the mRNA codons in the genetic code (standard codon table), decipher the segment of mRNA for both the original (wild-type) protein and the double mutant. (b) Which base was added? (c) Which base was deleted? --- 5. A eukaryotic cell produces a normal protein with the following amino acid sequence: Met-Val-His-Lys-Arg-Thr-Leu-Val. After irradiation, a transformed (mutated) eukaryotic cell is produced that makes a mutant protein from the same coding site on DNA: Met-Val-His-Lys-Glu-Pro. Describe the mutation that occurred. As always, justify your answer. --- 6. You are working with a newly discovered mutagen, and you wish to determine the base change that it introduced into DNA. Thus far you have determined that the mutagen chemically alters a single base in the DNA but this base-pairing properties are altered permanently. In order to determine the specificity of the alteration, you examine the amino acid changes that place after mutagenesis. A sample of what you find is shown below: Original: Gln-His-Ile-Glu-Lys Mutant: Gln-His-Met-Glu-Lys Original: Ala-Val-Asn-Arg Mutant: Ala-Val-Ser-Arg --- In addition to the textual information, the document features a keyboard image without any specific educational relevance. The focus should be on the educational content described.
Certainly! Here's the transcribed text and descriptions suitable for an educational website: --- **Transcription of the Educational Text** 4. A single base addition and a single base deletion approximately 15 bases apart in the mRNA specifying the protein lysozyme from the bacteriophage T4 caused a change in the protein from its wild-type composition: ...Lys-Ser-Pro-Ser-Leu-Asn-Ala-Ala-Lys... to the double mutant form: ...Lys-Val-His-Leu-Met-Ala-Ala-Lys... (a) From the mRNA codons in the genetic code (standard codon table), decipher the segment of mRNA for both the original (wild-type) protein and the double mutant. (b) Which base was added? (c) Which base was deleted? --- 5. A eukaryotic cell produces a normal protein with the following amino acid sequence: Met-Val-His-Lys-Arg-Thr-Leu-Val. After irradiation, a transformed (mutated) eukaryotic cell is produced that makes a mutant protein from the same coding site on DNA: Met-Val-His-Lys-Glu-Pro. Describe the mutation that occurred. As always, justify your answer. --- 6. You are working with a newly discovered mutagen, and you wish to determine the base change that it introduced into DNA. Thus far you have determined that the mutagen chemically alters a single base in the DNA but this base-pairing properties are altered permanently. In order to determine the specificity of the alteration, you examine the amino acid changes that place after mutagenesis. A sample of what you find is shown below: Original: Gln-His-Ile-Glu-Lys Mutant: Gln-His-Met-Glu-Lys Original: Ala-Val-Asn-Arg Mutant: Ala-Val-Ser-Arg --- In addition to the textual information, the document features a keyboard image without any specific educational relevance. The focus should be on the educational content described.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Concept explainers
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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Question 4
Transcribed Image Text:Certainly! Here's the transcribed text and descriptions suitable for an educational website:
---
**Transcription of the Educational Text**
4. A single base addition and a single base deletion approximately 15 bases apart in the mRNA specifying the protein lysozyme from the bacteriophage T4 caused a change in the protein from its wild-type composition:
...Lys-Ser-Pro-Ser-Leu-Asn-Ala-Ala-Lys...
to the double mutant form:
...Lys-Val-His-Leu-Met-Ala-Ala-Lys...
(a) From the mRNA codons in the genetic code (standard codon table), decipher the segment of mRNA for both the original (wild-type) protein and the double mutant.
(b) Which base was added?
(c) Which base was deleted?
---
5. A eukaryotic cell produces a normal protein with the following amino acid sequence:
Met-Val-His-Lys-Arg-Thr-Leu-Val.
After irradiation, a transformed (mutated) eukaryotic cell is produced that makes a mutant protein from the same coding site on DNA:
Met-Val-His-Lys-Glu-Pro.
Describe the mutation that occurred. As always, justify your answer.
---
6. You are working with a newly discovered mutagen, and you wish to determine the base change that it introduced into DNA. Thus far you have determined that the mutagen chemically alters a single base in the DNA but this base-pairing properties are altered permanently. In order to determine the specificity of the alteration, you examine the amino acid changes that place after mutagenesis. A sample of what you find is shown below:
Original: Gln-His-Ile-Glu-Lys
Mutant: Gln-His-Met-Glu-Lys
Original: Ala-Val-Asn-Arg
Mutant: Ala-Val-Ser-Arg
---
In addition to the textual information, the document features a keyboard image without any specific educational relevance. The focus should be on the educational content described.
Expert Solution
Step 1
4. The wild type Lys-ser-Pro-Ser-Leu-Asn-Ala-Ala-Lys
The double mutant Lys-Val-His-His-Leu-Met-Ala-Ala-Lys
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