CUSTOMIZED LAB MANUAL FOR BIOLOGY 1407
14th Edition
ISBN: 9781307717440
Author: Mader
Publisher: MCG
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Chapter 5, Problem S2.8BYB
Summary Introduction
To understand:
The role of DNA in a cell.
Introduction:
DNA (deoxyribonucleic acid) is a
Expert Solution & Answer
Explanation of Solution
The DNA is the main component of the cells, which determines all the characteristics. It is the component that stores the hereditary information and determines the function of the cells/organisms.
The main functions of the DNA are given below:
1. Storage of genetic information and gene expression: The DNA stores the genetic information of an organism. The genes are the unit of inheritance; it is the sequence of DNA that determines a particular trait. The genetic information determines all the body function and the body structures.
2. Replication: The DNA is involved in replication, which help the division of the DNA in the dividing cells.
3. Mutation and evolution. The DNA is the component, which transfers all the characteristics of one generation to the next generation. The mutation is the changes in the DNA sequence, which can be inherited in the next generation. The mutation is the main reason of evolution.
4. Recombination and
Conclusion
The major function of the DNA includes storage of genetic information and gene expression, replication, mutation and evolution, recombination, and genetic variation.
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Students have asked these similar questions
The Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows:
aabb: yellow
AABB, AABb, AaBb, and AaBB: red
AAbb and Aabb: orange
aaBB: yellow
aaBb: ?
Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why?
Question 21 options:
orange because A is epistatic to B
yellow because A is epistatic to B
red because B is epistatic to A
orange because B is epistatic to A
red because A is epistatic to B
yellow because B is epistatic to A
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
Chapter 5 Solutions
CUSTOMIZED LAB MANUAL FOR BIOLOGY 1407
Ch. 5.1 - Prob. 1LOCh. 5.1 - Prob. 2LOCh. 5.1 - Illustrate the cell cycle, and explain the major...Ch. 5.1 - Explain why apoptosis is a beneficial process.Ch. 5.2 - Distinguish between internal and external controls...Ch. 5.2 - Prob. 2LOCh. 5.2 - Prob. 3LOCh. 5.2 - Prob. 1QTCCh. 5.2 - Prob. 2QTCCh. 5.2 - Prob. 1CYP
Ch. 5.2 - Prob. 2CYPCh. 5.3 - Explain the role of mitosis and how it maintains...Ch. 5.3 - Summarize the major events that occur during...Ch. 5.3 - Prob. 3LOCh. 5.3 - Prob. 1CYPCh. 5.3 - Prob. 2CYPCh. 5.3 - Prob. 3CYPCh. 5.4 - Prob. 1LOCh. 5.4 - Prob. 2LOCh. 5.4 - Prob. 3LOCh. 5.4 - Prob. 1CYPCh. 5.4 - Prob. 2CYPCh. 5.4 - Prob. 3CYPCh. 5.5 - Prob. 1LOCh. 5.5 - Prob. 2LOCh. 5.5 - Prob. 1CYPCh. 5.5 - Prob. 2CYPCh. 5.6 - Prob. 1LOCh. 5.6 - 2. Explain the process of gamete production in...Ch. 5.6 - Prob. 1CYPCh. 5.6 - Prob. 2CYPCh. 5 - Prob. S2.8BYBCh. 5 - Section 3.1 What does the cell theory tell us...Ch. 5 - Prob. S3.3BYBCh. 5 - Prob. 1CSCh. 5 - Prob. 2CSCh. 5 - Prob. 3CSCh. 5 - Prob. 1ACh. 5 - Prob. 2ACh. 5 - Prob. 3ACh. 5 - Prob. 4ACh. 5 - Prob. 5ACh. 5 - Prob. 6ACh. 5 - Prob. 7ACh. 5 - Prob. 8ACh. 5 - Prob. 9ACh. 5 - Prob. 10ACh. 5 - Prob. 11ACh. 5 - Prob. 12ACh. 5 - Prob. 13ACh. 5 - Prob. 14ACh. 5 - Prob. 15ACh. 5 - Prob. 1TCCh. 5 - Prob. 2TCCh. 5 - Prob. 3TC
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