Introduction to Genetic Analysis
Introduction to Genetic Analysis
11th Edition
ISBN: 9781464109485
Author: Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley
Publisher: W. H. Freeman
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Chapter 2, Problem 68P

a.

Summary Introduction

To determine: The endosperm genotypes result from crosses s/s female x S/S male

Introduction: Corn is generally classed as to kernel endosperm characteristics. Endosperm refers to an edible seed tissue, surrounding and absorbed by the embryo.

b.

Summary Introduction

To determine: The endosperm genotypes result from crosses S/S female x s/s male.

Introduction: Endosperm is a structure of a seed that stores nutrients. Nutrients are stored in the form of starch, proteins or oils and these nutrients are utilized by the seed during developmentgermination to develop an embryo.

c.

Summary Introduction

To determine: The endosperm genotypes result from crosses S/s female x S/s male.

Introduction: The genotype is the part of the genetic makeup of a cell, and therefore of any individual, which determines one of its characteristics.

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. In corn, the allele s causes sugary endosperm, whereas Scauses starchy. What endosperm genotypes result fromeach of the following crosses?a. s/s female × S/S maleb. S/S female × s/s malec. S/s female × S/s male
Flower color in petunias is determined by the biochemical pathway shown below: A_ B_ C_ Yellow Orange > Green Blue aa bb Plants of genotype AAbbcc were mated to plants of genotype AaBbCc. Determine the phenotypic ratio expected from this cross and fill in the spaces in the ratio below with whole numbers in lowest form. lf none are expected in a class, then type the number 0 in the space. Yellow: Orange : Green: Blue
A TT (tall) plant is crossed with a tt (short plant). Create the cross and answer the following questions. What is the phenotypic ratio? What is the genotypic ratio? What % will be tall? What % will be short?

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Introduction to Genetic Analysis

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