Biology: Life on Earth
Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 10, Problem 1FTB

Fill-in-the-Blank

The physical position of a gene on a chromosome is called its_______. Alternative forms of a gene are called __________. These alternative forms of genes arise as___________, which are changes in the nucleotide sequence of a gene. LO1

Expert Solution & Answer
Check Mark
Summary Introduction

To review:

The given blank space in the statement, “The physical position of a gene on a chromosome is called _______. Alternative forms of a gene are called _______. These alternative forms of genes arise as ___________, which are changes in the nucleotide sequence of a gene.”

Introduction:

Gene is the biological unit of heredity. These are present on the chromosomes inside the nucleus in the eukaryotes. The DNA (deoxyribonucleic acid), in turn, is present in the genes. Genes are always present in two copies for a particular trait.

Explanation of Solution

A gene is made up of three DNA bases (example, AUG, TGG, GCG, ACT), which codes for a single amino acid. These triplet bases are present on the DNA and are known as codon when present on the mRNA (messenger ribonucleic acid). The place or spot where genes are present on the chromosomes is called locus. A locus marks the physical position of the gene on the chromosome.

The multiple forms of genes are known as alleles. They arise due to a mutation in the nucleotide sequence of the genes. These alleles are inherited from the parents, who contain either homozygous or heterozygous forms of these alleles. These alleles give variation to the newly formed organism as a result of reproduction. The changes in the sequence of the nucleotides or the replacement/removal of a base pair result in a mutation in the nucleotide sequence.

Conclusion

The physical position of a gene on a chromosome is called a locus. Alternative forms of a gene are called alleles. These alternative forms of genes arise as mutation, which are changes in the nucleotide sequence of a gene.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Which statement best describes a genomic library? an initial amount of DNA can be multiplied into millions of copies a large collection of bacteria that are engineered to contain fragments of an organism's complete genome a collection of DNA sequences are arranged on a microscopic grid many small pieces of circular, double-stranded DNA that replicate independently of chromosomes contained in a nucleus
The observation that some genes are mosaics, composed of parts of other genes can be explained by ______?     drift     gene duplication     reverse transcription     exon shuffling     psuedogenes
Which of the following is described as a structural rearrangement of a chromosome in which a broken piece has become reattached in the wrong location?   Translocation   Duplication   Inversion   Deletion
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology - Intro to Cell Structure - Quick Review!; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=vwAJ8ByQH2U;License: Standard youtube license