Question 1

Alleles that are masked by an epistatic locus are said to be ________ to the genes at that locus.

Accepted Answer

A) functional 
B) hypostatic 
C) conditional 
D) complementary 
E) auxotrophic 
A) functional 
B) hypostatic 
C) conditional 
D) complementary 
E) auxotrophic

Question 2

Which of the following ratio is not likely to occur in crosses F2 when one is dealing with two interacting,epistatic gene pairs?

Accepted Answer

A) 3:1 
B) 9:3:4 
C) 9:7 
D) 12:3:1 
E) 15:1 
A) 3:1 
B) 9:3:4 
C) 9:7 
D) 12:3:1 
E) 15:1

Question 3

Rabbits can come in an allelic series where brown > himilayan > chinchilla > albino,where > means dominant over.They also can come in long recessive)and short fur.You wish to obtain rabbit babies that are albino with long fur.Which of the following crosses would you do?

Accepted Answer

A) albino with long fur × albino with short fur homozygous 
B) albino with long fur × brown chinchilla heterozygote with long fur 
C) homozygous brown with long fur × albino with short fur heterozygote 
D) albino with long fur × homozygous himilayan with short fur heterozygote 
E) chinchilla heterozygous with albino with short fur heterozygous × brown heterozygous with albino with long fur 
A) albino with long fur × albino with short fur homozygous 
B) albino with long fur × brown chinchilla heterozygote with long fur 
C) homozygous brown with long fur × albino with short fur heterozygote 
D) albino with long fur × homozygous himilayan with short fur heterozygote 
E) chinchilla heterozygous with albino with short fur heterozygous × brown heterozygous with albino with long fur

Question 4

What is a heterogenous trait?

Accepted Answer

A) a trait in which offspring show a more severe phenotype depending on which parent donates the allele 
B) a trait in which different sexes have different manifestations of severity 
C) a trait in which the phenotype differs based on the environment 
D) a trait that differs,but not based on environmental conditions 
E) a trait in which many genes can potentially be mutated to lead to the same phenotype 
A) a trait in which offspring show a more severe phenotype depending on which parent donates the allele 
B) a trait in which different sexes have different manifestations of severity 
C) a trait in which the phenotype differs based on the environment 
D) a trait that differs,but not based on environmental conditions 
E) a trait in which many genes can potentially be mutated to lead to the same phenotype

Question 5

Many of the color varieties of summer squash are determined by several interacting loci: AA or Aa gives white,aaBB or aaBb gives yellow,and aabb produces green.Assume that two fully heterozygous plants are crossed.Give the phenotypes with frequencies of the offspring.

Accepted Answer

A) 4 white :9 yellow : 3 green 
B) 12 white : 3 yellow : 1 green 
C) 9 white : 3 yellow : 4 green 
D) 3 white : 9 yellow : 4 green 
E) 12 white : 1 yellow : 3 green 
A) 4 white :9 yellow : 3 green 
B) 12 white : 3 yellow : 1 green 
C) 9 white : 3 yellow : 4 green 
D) 3 white : 9 yellow : 4 green 
E) 12 white : 1 yellow : 3 green

Alleles that are masked by an epistatic locus are said to be ________ to the genes at that locus.

Which of the following ratio is not likely to occur in crosses F₂ when one is dealing with two interacting,epistatic gene pairs?

Rabbits can come in an allelic series where brown > himilayan > chinchilla > albino,where > means dominant over.They also can come in long recessive)and short fur.You wish to obtain rabbit babies that are albino with long fur.Which of the following crosses would you do?

What is a heterogenous trait?

Many of the color varieties of summer squash are determined by several interacting loci: AA or Aa gives white,aaBB or aaBb gives yellow,and aabb produces green.Assume that two fully heterozygous plants are crossed.Give the phenotypes with frequencies of the offspring.

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Structure and Analysis

DNA Replication and Recombination

DNA Organization in Chromosomes

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Bacteria

Transcriptional Regulation in Eukaryotes

Post-Transcriptional Regulation in Eukaryotes

Epigenetic Regulation in Eukaryotes

Recombinant Dna Technology

Genomic Analysis

Applications of Genetic Engineering and Biotechnology

Developmental Genetics

Cancer Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

CRISPR and Genomic Editing

DNA Forensics

Genomics and Precision Medicine

Genetically Modified Foods

Gene Therapy

Advances in Neurogenetics: The Study of Huntington Disease

Filters

Exam 4: Extensions of Mendelian Genetics

Alleles that are masked by an epistatic locus are said to be ________ to the genes at that locus.

Which of the following ratio is not likely to occur in crosses F2 when one is dealing with two interacting,epistatic gene pairs?

Rabbits can come in an allelic series where brown > himilayan > chinchilla > albino,where > means dominant over.They also can come in long recessive)and short fur.You wish to obtain rabbit babies that are albino with long fur.Which of the following crosses would you do?

What is a heterogenous trait?

Many of the color varieties of summer squash are determined by several interacting loci: AA or Aa gives white,aaBB or aaBb gives yellow,and aabb produces green.Assume that two fully heterozygous plants are crossed.Give the phenotypes with frequencies of the offspring.

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Structure and Analysis

DNA Replication and Recombination

DNA Organization in Chromosomes

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Bacteria

Transcriptional Regulation in Eukaryotes

Post-Transcriptional Regulation in Eukaryotes

Epigenetic Regulation in Eukaryotes

Recombinant Dna Technology

Genomic Analysis

Applications of Genetic Engineering and Biotechnology

Developmental Genetics

Cancer Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

CRISPR and Genomic Editing

DNA Forensics

Genomics and Precision Medicine

Genetically Modified Foods

Gene Therapy

Advances in Neurogenetics: The Study of Huntington Disease

Filters

Which of the following ratio is not likely to occur in crosses F₂ when one is dealing with two interacting,epistatic gene pairs?