Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 13.5, Problem 2TC
Summary Introduction

To determine: The result that would be observed when there are epigenetic tags on the insulin gene and their promoters are analyzed.

Introduction: Insulin is a hormone secreted by the pancreas, which permits the body to use glucose (sugar) from the carbohydrates in the food that an individual eats for energy or to store the glucose for future use. Insulin helps in regulating the blood sugar level in the body of an individual. The genes that are involved in the synthesis of the insulin protein are called insulin gene. Insulin hormone is usually secreted by the beta-cells of the pancreas.

Summary Introduction

To describe: The way in which an individual can normalize the insulin secretion in Type 2 diabetes.

Introduction: Diabetes mellitus refers to a group of metabolic disorders in which the sugar level is high in the blood for a prolonged period. During this condition, the beta cells of the pancreas produce little or no insulin. Diabetes mellitus is classified into type 1, type 2, and gestational diabetes.

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The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW).  If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?
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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
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