Biology
Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 18, Problem 8U
Summary Introduction

Introduction:

Proteome is the collection of all proteins present in a cell and the set of “all RNA molecules” present in cell is known as transcriptome. Transcriptome can vary with environmental conditions because it is not fixed like genome. It also reflects the genes that are actively expressed at a particular time.

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A mouse gene was identified and determined to be required for formation of heart muscle. A gene with a similar sequence was identified in the human genome. What experiment could scientists do to determine if the mouse and human genes have similar functions? A. The scientist could place the normal human gene into normal mice and see if the resulting mice are viable. B. The scientist could search the human genome for genes that encode proteins that are identical to the protein encoded by the mouse gene. C. The scientist could place the normal human gene into mutant mice to see if heart muscle forms in the mouse. D. The scientist could place the mutant mouse gene into humans to see if humans develop without heart muscle.
1a) Why is it possible for you to study the eye colour gene by extracting cheek cells?   a. Because the nucleus of every cell in the human body contains the same genetic information. b. Because the cheek cells are located near the cells of the eye and so they are able to exchange DNA.   c. Because all genes in the human body are expressed at all times so it is easy to study them. d. All of the above are possible explanations. 1b) What is the purpose of heating the sample to 75°C following addition of the 0.2M NaOH solution?   a. To denature the histone proteins that are keeping the DNA tightly coiled. b. To ensure that all the DNA is removed from the swab in preparation for PCR.   c. To breakdown the cheek cell membrane to release the DNA from the cell.  d. It breaks down the circular DNA down into linear fragments so that they will be easier to visualize.i
Which statement BEST differentiate metagenomics from proteomics? a The material used in metagenomics is mRNA while proteomic uses polypeptides. b The material used in metagenomics is DNA while proteomic uses polypeptides. c The material used in metagenomics is a transcriptome while proteomic uses polypeptides. d The material used in metagenomics is DNA from a mitochondrion while proteomic uses polypeptides.
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