Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Question
Chapter 11.1, Problem 2CYL
Summary Introduction
To explain:
The meaning of heterozygous and homozygous expression for a gene.
Introduction:
Genetic expression means the synthesis of proteins from genes. There are dominant and recessive genes present on the chromosomes. The dominant genes are expressed and the recessive genes are not expressed.
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If someone is heterozygous for a particular gene, what specifically is different about each copy of the gene?
Describe the difference between a homozygous and heterozygousgenotype, and represent each symbolically with an example.
Which statement is false when considering alleles and genes?
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a) A given gene can have many different possible alleles.
b) Alleles are alternative forms or variants of genes.
c) Individuals can be homozygous or heterozygous, and this refers to which alleles they have for a particular gene.
d) An allele is the same thing as a gene.
Chapter 11 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 11.1 - describe the relationships among chromosomes, DNA,...Ch. 11.1 - Prob. 2CYLCh. 11.2 - distinguish between self-fertilization and...Ch. 11.2 - Prob. 2CYLCh. 11.3 - Sudden Death on the court Many traits, in humans...Ch. 11.3 - describe the pattern of inheritance of a trait...Ch. 11.3 - Prob. 1TCCh. 11.3 - Prob. 2CYLCh. 11.3 - Prob. 3CYLCh. 11.4 - Prob. 1CYL
Ch. 11.4 - Prob. 1TCCh. 11.4 - Prob. 2CYLCh. 11.4 - Prob. 2TCCh. 11.4 - Prob. 3CYLCh. 11.5 - Prob. 1CSCCh. 11.5 - Prob. 1CYLCh. 11.5 - Prob. 1HYEWCh. 11.5 - Prob. 1TCCh. 11.5 - explain how polygenic inheritance and...Ch. 11.6 - describe how the patterns of inheritance differ...Ch. 11.7 - Prob. 1CYLCh. 11.7 - explain why most sex-linked traits are controlled...Ch. 11.7 - describe the pattern of inheritance of sex-linked...Ch. 11.8 - Prob. 1CSRCh. 11.8 - use pedigrees to determine the pattern of...Ch. 11.8 - Prob. 1ETCh. 11.8 - Prob. 1TCCh. 11.8 - Prob. 2CYLCh. 11.8 - Prob. 2ETCh. 11 - Prob. 1ACCh. 11 - An organism is described as Rr, with red coloring....Ch. 11 - In certain cattle, hair color can be red...Ch. 11 - Prob. 1MCCh. 11 - Define the following terms: gene, allele,...Ch. 11 - Prob. 2ACCh. 11 - Prob. 2FIBCh. 11 - Prob. 2GPCh. 11 - Prob. 2MCCh. 11 - Prob. 2RQCh. 11 - Prob. 3FIBCh. 11 - Prob. 3GPCh. 11 - Prob. 3MCCh. 11 - Prob. 3RQCh. 11 - Genes that are present on one sex chromosome but...Ch. 11 - Prob. 4GPCh. 11 - Prob. 4MCCh. 11 - Prob. 4RQCh. 11 - Prob. 5FIBCh. 11 - Prob. 5GPCh. 11 - Prob. 5MCCh. 11 - Prob. 5RQCh. 11 - Prob. 6GPCh. 11 - Prob. 6RQCh. 11 - In the couple described in Problem 6, the woman...
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- In man, muscular dystrophy is a condition in which the muscles waste away during early life and may result in a shorter life expectancy. It is due to a sex-linked, recessive gene. A certain couple has five children – three boys (ages 1yr, 3yrs, and 10yrs old) and two girls (ages 5yrs and 7yrs old). The oldest boy shows the symptoms of this disease. You are their family physician and they come to you for advice. What would you tell them about the chances of their other children developing the disease?arrow_forwardWhich of the following is true for linked genes? a) Alleles of linked genes are often inherited together. b) Alleles of linked genes are randomly segregated into gametes due to independent assortment. O c) Linked genes are on the same chromosome, but far apart. Linked genes are located on different chromosomes.arrow_forwardSex-specific imprinting distinguishes male and female genomes and is inherited in a parent-of-origin-specific manner. Such imprints are established in the germline during gametogenesis and remain intact throughout embryonic and postnatal development. Access the Imprinted Gene Catalogue website https://www.geneimprint.com/Links to an external site.. Click on “Search by Species Name” and then click on “Human.” Find 4 disorders that involve imprinting: 2 transmitted from the mother and 2 from the father, and use OMIM to describe the phenotypes (you may include images of phenotypes) and explain their underlying cause(s). Paternal Imprint Maternal Imprint 1  2 Include referencearrow_forward
- Describe the following (50 words minimum per concept): chromosomes, genes, alleles and traits and explain how they are related.arrow_forwardWhat is a homologous gene?arrow_forwardIn a human karyotype, chromosomes are arranged in 23 pairs. If one of the autosomal pairs is examined, which of the following characteristics will the two chromosomes of the pair have in common? a) loci and staining pattern b) length and DNA sequence c) X-like shape and alignment on the metaphase plate d) alleles and centromere positionarrow_forward
- The following is the diagram of a pair of chromosomes. Identify a gene locus, a pair of alleles, and three pairs of genes.arrow_forwardShown below is a karyotype from a human being. How many total autosomes does this individual have? A) 2 B) 44 C) 46 D) 23arrow_forwardA) Distinguish between the general concept of a gene and the specific concept of an allele at the level of the DNA. B) Strictly speaking, do identical twins have identical phenotypes? Explain.arrow_forward
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