Genetic Analysis: An Integrated Approach (3rd Edition)
Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
Question
Book Icon
Chapter 8, Problem 1P
Summary Introduction

To analyze:

In terms of the central dogma of molecular biology, explain:

  1. The meaning of biological terminology, “gene”?

  2. The reason behind genes for rRNA and tRNA is considered to be genes even though they do not produce polypeptides.

Introduction:

DNA is the genetic material present in all organisms. Gene is a unit of heredity that transfers from parents to offsprings. In other terms, it is a physical and functional unit of heredity.

Central dogma – It is the directional flow of information from DNA to RNA to Protein. The process of copying DNA information into RNA is called Transcription while the process of translating the message copied into proteins is called Translation.

Expert Solution & Answer
Check Mark

Explanation of Solution

Central dogma – It is the flow of the formation of a functional product that includes copying of genetic material into RNA and then the translation of copied sequence into proteins.

Genetic Analysis: An Integrated Approach (3rd Edition), Chapter 8, Problem 1P

  1. A unit of heredity that is passed from one generation to the next generation or from parents to offsprings is called a gene.

    Genes instruct for a functional product or proteins according to the need of a cell. These proteins are joined together and form polypeptides. Genes that specify the polypeptides are called protein-coding genes.

  2. Not all the genes specify polypeptides; some code for other molecules, too. Few genes instruct the production of RNA molecules like tRNA (Transfer RNA) and rRNA (Ribosomal RNA) that play crucial roles in the translation.

Conclusion

The gene is the structural and functional unit of DNA which transmit from one generation to the next generation. The gene contains necessary information for the formation of the specific protein.

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
(a) Why can there be multiple codons for an amino acid? Why would this have evolved? (b) What is the advantage of Illumina Next Generation Sequencing?
Answer completely and correctly: Why is it more likely that insertions or deletions will be more detrimental to a cell than point mutations?
Give typing answer with explanation and conclusion Suppose that RNA polymerase was transcribing a eukaryotic gene with several introns all contained within the coding region. In what order would the RNA polymerase encounter the elements in the DNA sequence of the gene? Earliest encountered promoter 5' UTR translation initiation codon splice branch point stop codon 3' UTR Latest encountered

Chapter 8 Solutions

Genetic Analysis: An Integrated Approach (3rd Edition)

Knowledge Booster
Background pattern image
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