Homework Answers
Two alleles of the same gene may both produce enough function protein product and each manifest a phenotype in one individual.
Answer – True
Explanation - Take the example of individual with AB blood group. In this individual two alleles, IA and IB of gene I is present which determines the ABO blood group of individuals. Now, when both the allele i.e. IA and IB is present then the individual consists both A-antigen and B-antigen in its red blood cells. Thus, two alleles of the same gene may both produce enough function protein product and each manifest a phenotype in one individual.
Two genes, each with two alleles, interact to produce a phenotype. This is an example of multiple alleles.
Answer – False
Explanation – This is an example of gene interaction not multiple alleles. Multiples alleles are said when there are more than two alleles of a gene exist. For example, in human ABO blood group the gene I has three different alleles which are IA, IB and IC. Therefore, the gene I is a case of multiple alleles not the above mention in question.
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Two alleles of the same gene may both produce enough functional protein product and each manifest...
In rabbits, one enzyme (the product of a functional gene A) is needed to produce a...
In rabbits, one enzyme (the product of a functional gene A) is needed to produce a substance required for hearing. Another enzyme (the product of a functional gene B) is needed to produce another substance required for hearing. The genes responsible for the two enzymes are not linked. Individuals homozygous for either one or both of the nonfunctional recessive alleles, a or b, are deaf. If two rabbits (both heterozygous for both genes are mated), what phenotypes and what phenotypic...
An individual inherits the alleles c_1 and c_2 for the C gene. Both alleles encode functional...
An individual inherits the alleles c_1 and c_2 for the C gene. Both alleles encode functional proteins and are fully expressed in each cell. Click on the term that describes the expression of the C gene. (Select the one correct answer.)
Two genes (B and C) are transcription factors that affect the expression of gene A. The...
Two genes (B and C) are transcription factors that affect the expression of gene A. The protein product of gene B allows gene A to be transcribed while the protein product of gene C doubles the rate of transcription of gene A. How does the expression of gene A differ between two individuals with the following genotypes? Assume lower case alleles produce non-functional proteins and each gene shows complete dominance. Individual 1: AA : BB : Cc Individual 2: AA...
An individual has two different alleles of a particular gene. What’s true of the two alleles?...
An individual has two different alleles of a particular gene. What’s true of the two alleles? A. They’re present on different chromosomes of a homological pair B. They code for slightly different forms of the same protein C. They’re separated from each other, into different daughter cells, in meiosis D. A and B are correct E. A, B, and C are correct
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes....
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
You have three genes on the same chromosome - A, B and C. Each gene has...
You have three genes on the same chromosome - A, B and C. Each gene has two alleles in a dominant/recessive relationship. For these genes the homozygous recessive has the mutant phenotype for that trait, the dominant phenotype = wild type for that trait. allele A is dominant to a; phenotype a = mutant for trait a; phenotype A = wild type for trait A allele B is dominant to b; phenotype b = mutant for trait b; phenotype B...
1. Describe two kinds of recombination in eukaryotes. True of False 2._____ A recessive phenotype can...
1. Describe two kinds of recombination in eukaryotes. True of False 2._____ A recessive phenotype can be expressed by some progeny of a monohybrid cross. 3._____ Epistatic genes may result from dominant or recessive alleles. 4._____ At a single locus, a diploid individual may have more than two different alleles. 5. _____ A temperature-sensitive allele is an example of a genotype x environment interaction. 6. _____ All of the genetic material in a eukaryotic cell is found in the nucleus....
Assume that tail length in mice is a quantitative trait involving two genes, each with 2...
Assume that tail length in mice is a quantitative trait involving two genes, each with 2 alleles. One allele at each gene contributes to long tails, the other allele at each gene does not (small tails). The genes are located on different autosomes. Mice with 0 contributing alleles have tails that are 4 cm in length; mice with tails with 4 contributing alleles are 12 cm in length. Determine the phenotypic ratio from an F2 from a true breeding parent...
onaformation from a ee is used in the synthesisof 17 functional gene product. A) Geno B)...
onaformation from a ee is used in the synthesisof 17 functional gene product. A) Geno B) Gene regulation C) Epigenetics D) Imprinting E) Chromatin remodeling 18. A histone code is the: A) B) nucleotide sequence of an individual histone protein's gene. pattern of chemical modification of the DNA wrapped around an individual histone. C) D) E) pattern of chemical modification of the histone tails. number of amino acids in an individual histone that are methylated None of the other answer...
21) Humans have about 20,000 genes. If each gene had two alleles (not actually true since...
21) Humans have about 20,000 genes. If each gene had two alleles (not actually true since some have only one and otherfar more than two), how many different genotypes could be produced from a single mating event?
In rabbits, one enzyme (the product of a functional gene A) is needed to produce a substance required for hearing. Another enzyme (the product of a functional gene B) is needed to produce another substance required for hearing. The genes responsible for the two enzymes are not linked. Individuals homozygous for either one or both of the nonfunctional recessive alleles, a or b, are deaf. If two rabbits (both heterozygous for both genes are mated), what phenotypes and what phenotypic...
An individual inherits the alleles c_1 and c_2 for the C gene. Both alleles encode functional proteins and are fully expressed in each cell. Click on the term that describes the expression of the C gene. (Select the one correct answer.)
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
onaformation from a ee is used in the synthesisof 17 functional gene product. A) Geno B) Gene regulation C) Epigenetics D) Imprinting E) Chromatin remodeling 18. A histone code is the: A) B) nucleotide sequence of an individual histone protein's gene. pattern of chemical modification of the DNA wrapped around an individual histone. C) D) E) pattern of chemical modification of the histone tails. number of amino acids in an individual histone that are methylated None of the other answer...
21) Humans have about 20,000 genes. If each gene had two alleles (not actually true since some have only one and otherfar more than two), how many different genotypes could be produced from a single mating event?
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