Genetics: From Genes to Genomes, 5th edition
Genetics: From Genes to Genomes, 5th edition
5th Edition
ISBN: 9780073525310
Author: Leland H. Hartwell, Michael L. Goldberg, Janice A. Fischer, Leroy Hood, Charles F. Aquadro
Publisher: McGraw-Hill Education
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Chapter 13, Problem 27P
Summary Introduction

a.

To determine:

The method of entry of a transposon into the bacteria and the identification of new insert.

Introduction:

A plasmid consists of nucleotides like chromosomal DNA, but it is not present inside the nucleoid. The plasmid has mainly used a vector for transferring the part of the genome of one organism into another.

Summary Introduction

b.

To determine:

The use of plasmid as a mutagen.

Introduction:

Plasmid fingerprinting is performed in many organisms like Escherichia coli, Salmonella, Campylobacter, and Pseudomonas strains and this technique has been proved to be more accurate than other phenotyping methods, for example, biotyping, antibiotic-resistance patterns, phage typing, and serotyping.

Summary Introduction

c.

To determine:

The identification of the affected gene that is defective in plaque formation.

Introduction:

Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.) After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.)   Data Table 1Stage    Totals    PercentInterphase        Mitosis:        Prophase        Metaphase        Anaphase        Telophase        Cytokinesis        Totals    100    100% To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…
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