Campbell Essential Biology (7th Edition)
Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 1SQ

The genetic makeup of an organism is called its _____, and the physical traits of an organism are called its ______.

Expert Solution & Answer
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Summary Introduction

To analyze:

The genetic makeup of an organism and the physical traits of an organism.

Introduction:

The genotype consists of the genes that define the genetic composition of an organism. The phenotype consists of the external visible characteristics of the organism.

Answer to Problem 1SQ

Correct Answer:

The genetic makeup of an organism is called its genotype, and the physical traits of an organism are called its phenotype.

Explanation of Solution

The genotype consists of the entire genetic composition of the organism and it includes the genes (sequence of nucleotides). The example of genotypes includes genes for eye, hair, and nose development. The phenotype is the external expression of the physical traits of the organism. They are the external visible features of the organism. The examples of phenotype include eye color, hair color, and skin color.

Conclusion

The genotype consists of the genes of the organism. The phenotype consists of the external visible characteristics of the person.

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