CAMPBELL'S BIOLOGY MASTERING BIOLOGY
CAMPBELL'S BIOLOGY MASTERING BIOLOGY
12th Edition
ISBN: 9780135855843
Author: Urry
Publisher: PEARSON
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Chapter 2, Problem 2.1CR

Compare an element and a Compound.

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Summary Introduction

To explain: The difference between a compound and an element.

Introduction: All organisms are composed of matter, which is defined as anything that has mass and occupies space. All matter is made up of one or more chemical elements. An element cannot be further broken down into other chemical substances. When two or more elements combine to form a chemical substance in a fixed ratio, it is called a compound.

Explanation of Solution

Differences between chemical elements and compounds:

An element is the smallest unit of matter. It cannot be further broken down into other chemical substances.

Element Compound
(i.) It is the made up of only the same type of atoms It is made up of two or more different elements combined in a fixed ratio.
(ii.) It cannot be divided into other chemical substances It can be broken down into its constituent elements
(iii.) 92 naturally-occurring elements have been identified The number of compounds occurring in nature or synthesized by man is uncountable
(iv.) Represented by a chemical symbol A compound is depicted by writing the symbols of elements from which it is made and their combining ratio
(v.) Examples: Carbon (C), Oxygen (O), Nitrogen (N), Sodium (Na), Hydrogen (H) Example: Water (H2O), glucose (C6H12O6), Common Salt (NaCl), Ammonia (NH3)

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Linkage in common bean Alleles at the P locus control seed color. Plants which are pp have white seeds, white flowers and no pigment in vegetative parts. Plants which are P_ have black seeds, purple flowers and may have varying degrees of pigment on stems and leaves. Seed color can be assessed, visually, based on if the seed is white or not white A gene for mold resistance has been reported and we want to determine its inheritance and whether it is linked to P. For the purposes of this exercise, we will assume that resistance is controlled by a single locus M, and M_ plants are resistant and mm plants are susceptible.  Resistance can be measured, under greenhouse conditions, 2 weeks after planting, by injecting each seedling with a spore suspension. After two weeks, the seedlings can be rated as resistant or susceptible, based on whether or not tissue is actively sporulating. For this exercise we will use seed and data from the F10 generation of a recombinant inbred population…
Alleles at the P locus control seed color. Plants which are pp have white seeds, white flowers and no pigment in vegetative parts. Plants which are P_ have black seeds, purple flowers and may have varying degrees of pigment on stems and leaves. Seed color can be assessed, visually, based on if the seed is white or not white A gene for mold resistance has been reported and we want to determine its inheritance and whether it is linked to P. For the purposes of this exercise, we will assume that resistance is controlled by a single locus M, and M_ plants are resistant and mm plants are susceptible.  Resistance can be measured, under greenhouse conditions, 2 weeks after planting, by injecting each seedling with a spore suspension. After two weeks, the seedlings can be rated as resistant or susceptible, based on whether or not tissue is actively sporulating. For this exercise we will use seed and data from the F10 generation of a recombinant inbred population produced using single seed…
can you help? I think its B but not sure
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