ESSENTIAL CELL BIOLOGY-TEXT (PB)
ESSENTIAL CELL BIOLOGY-TEXT (PB)
5th Edition
ISBN: 9780393680324
Author: ALBERTS
Publisher: NORTON
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Chapter 4, Problem 2Q
Summary Introduction

To determine: The significance in the arrangement of the given sequence (Leu-Lys-Val-Asp-Ile-Ser-Leu-Arg-Leu-Lys-Ile-Arg-Phe-Glu) when incorporated in beta sheets.

Introduction: Beta sheets are the secondary structure of proteins. There are two types of beta sheets: the parallel and anti-parallel. When two strands of the beta sheets run in similar direction, it is termed as parallel beta strands, whereas when the both strands run in reverse direction, it is termed as anti-parallel beta sheets. In the anti-parallel sheets, amino terminal of one amino acid forms bond with the carboxyl terminal of the nearby strand, and carboxyl terminal of the same amino acid forms bond with the amino terminal of the other nearby strand. Whereas in the parallel sheet, the amino terminal of amino acid in one strand forms a bond with the amino terminal of the nearby strand and the carboxyl end forms hydrogen with the carboxyl end of the nearby strand.

Summary Introduction

To predict: The arrangement of beta sheets in a protein.

Introduction: Beta sheets are the secondary structure of proteins. There are two types of beta sheets; the parallel and anti-parallel.

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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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Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY