EBK BIOLOGY
6th Edition
ISBN: 9780134819150
Author: Maier
Publisher: VST
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Chapter 8, Problem 4LTB
Summary Introduction
Introduction:
A gene is the basic functional unit for heredity. Genes are composed of the DNA strands and are located on the chromosomes. Genes are instructions to make the protein by the process of transcription and translation. The location where the gene is placed in the chromosome is termed as the locus of that gene.
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The allele types for a single gene are given symbols that represent the organisms
genotype.
phenotype.
pedigree.
karyotype.
Match each description with the correct genetic term.
A trait expressed in offspring
A trait that is masked or not expressed in offspring
Identical paired alleles for a gene (TT or tt)
Two different alleles for a gene (Tt)
A basic unit of heredity
The outward appearance of the alleles
The allele combinations represented by letters or symbols
Alternate forms of a gene
Gene
Answer
Heterozygous
Answer
Recessive
Answer
Alleles
Answer
Dominant
Answer
Homozygous
Answer
Genotype
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Phenotype
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The combination of genes present in the cells of an
individual is called the
Chapter 8 Solutions
EBK BIOLOGY
Ch. 8 - What is the relationship between genotype and...Ch. 8 - Add labels to the figure that follows, which...Ch. 8 - Prob. 3LTBCh. 8 - Prob. 4LTBCh. 8 - Prob. 5LTBCh. 8 - Scientists have recently developed a process by...Ch. 8 - What is the physical basis for the independent...Ch. 8 - Prob. 8LTBCh. 8 - Prob. 9LTBCh. 8 - Prob. 10LTB
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- Which of the following defines a genotype? The particular set of alleles that is carried in an individual’s chromosomes A part of a chromosome that encodes an RNA or protein product in its DNA sequence Forms of a gene with slightly different DNA sequences that may encode slightly different versions of the gene’s product An individual’s observable traitsarrow_forwardThe IA allele is to the IB allele and to the i allele. codominant; codominant codominant; completely dominant completely dominant; codominant completely dominant; completely dominantarrow_forwardsequence of DNA that codes for a protein and thus determines a trait is a. chromosome gene trait gametearrow_forward
- In 1-3 sentences each define the follwing terms: genotype, phenotype, homozygous, heterozygous, dominant, recessive, epigeneticsarrow_forwardDefine by giving an example : Allele.arrow_forwardIn 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_forward
- Which of these terms is correctly matched with its definition?a. autosome—an X or a Y chromosomeb. phenotype—the genetic makeup of an individualc. allele—variant form of a gene occupying locus on a homologouschromosomed. heterozygous—having two identical genes for a traite. recessive—a trait expressed when the genes are heterozygousarrow_forwardThe particular combination of alleles present in a given organism is referred to as a: Locus Gene Genotype Trait Phenotypearrow_forwardExplain some of the ways genes may interact to affect the phenotype and discuss how a single gene can affect many features of the organism simultaneously.arrow_forward
- A gene is termed when one copy is needed for the trait to be expressed genomic dominant recessive importantarrow_forwardAllele-specific gene inactivation by males and females during formation of gametes is called? Genomic imprinting Genetic imprinting DNA foot printing All of the abovearrow_forwardGenotype refers to the letters used as symbols for the genes. Phenotype refers to the appearance.Let’s practice assigning letters for the tall and short phenotype. Remember, we usually use the letter of the dominant (trait).arrow_forward
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