Epistasis Study guides, Class notes & Summaries

A gene that affects the expression of a second gene is an example of __________________. a) pleiotropy b) codominance c) epistasis d) polygenic inheritance e) incomplete dominance correct answer: c) epistasis __________ is an example of a character that is controlled by more than one gene (a quantitative character) and demonstrates a continuum of phenotypes. a) Pleiotropy b) Polygenic inheritance c) Epistasis d) Codominance e) Incomplete dominance correct answer: b) Polygenic inhe...

Simply-Inherited Traits Correct Answer: traits affected by only a few genes qualitative or categorical affected little by environment Quantitative Correct Answer: measured with numbers Polygenic Traits Correct Answer: Affected by many genes with no gene having an overriding influence. - EX: Growth rate, milk production, ribeye area Typically quantitative or continuous in expression. - Phenotypes are usually described by numbers Greatly influenced by environment Examples of Sim...

Epistasis refers to - The expression of one gene masking the expression of another. Which statement about a dihybrid cross is true? - It is a cross between identical double heterozygotes Which statement about mitosis is true? - Two genetically identical daughter cells are formed. Separation of the alleles of a single gene into different gametes is called - Segregation A mechanism for increasing the genetic diversity of offspring is - Sexual reproduction. In mitotic metaphase, a cell with e...

Chapter 03 Extensions to Mendel’s Laws     
Multiple Choice Questions
  1.  Which of the following is not a phenotypic description of allele interactions affecting the expression of traits?  
A.  incomplete dominance 
B.  codominance 
C.  polymorphic 
D.  multifactorial 
E.  pleiotrophic   
Bloom's: 1. Remember
Learning Objective: 03.01.01 Categorize allele interactions as completely dominant, incompletely dominant, or codominant.
Section: 03.01
Topic...

BIOL110 Exam 3 Mastering Bio Questions (answered) A gene that affects the expression of a second gene is an example of __________________. A. pleiotropy B. codominance C. epistasis D. polygenic inheritance E. incomplete dominance C. epistasis __________ is an example of a character that is controlled by more than one gene (a quantitative character) and demonstrates a continuum of phenotypes. A. Pleiotropy B. Polygenic inheritance C. Epistasis D. Codominance E. Incomplete dominan...

Lecture 6: Vocab: ● Autosome: ○ Any chromosome not considered as a sex chromosome, or is not involved in sex determination. ○ It occurs in pairs in somatic cells and singly in sex cells (gametes) ● Bivalent: ○ a pair of homologous chromosomes. ● Drosophila melanogaster: ○ a species of fruit Fly much used in genetics because of the large size of its chromosomes. ● Epistasis (gene x gene interaction): ○ refers to genetic interactions in which one gene modifies the eff...

Ecology Exam 2 Chapter 7 1. Different forms of a particular gene are known as a. chromosomes. b. alleles. c. polygenic. d. pleiotropic. Answer: b 2. A trait that is determined by multiple genes is referred to as a. polygenic. b. pleiotropic. c. homozygous. d. heterozygous. Answer: a 3.Chickens with the dominant allele at the frizzle gene produce curly feathers, have very high body temperature, and lay few eggs. This is an example of a. polygenic traits. b. pleiotropy. c. epista...

Ecology Exam 2 Chapter 7 1. Different forms of a particular gene are known as a. chromosomes. b. alleles. c. polygenic. d. pleiotropic. Answer: b 2. A trait that is determined by multiple genes is referred to as a. polygenic. b. pleiotropic. c. homozygous. d. heterozygous. Answer: a 3.Chickens with the dominant allele at the frizzle gene produce curly feathers, have very high body temperature, and lay few eggs. This is an example of a. polygenic traits. b. pleiotropy. c. epista...

Ecology Exam 2 Chapter 7 1. Different forms of a particular gene are known as a. chromosomes. b. alleles. c. polygenic. d. pleiotropic. Answer: b 2. A trait that is determined by multiple genes is referred to as a. polygenic. b. pleiotropic. c. homozygous. d. heterozygous. Answer: a 3.Chickens with the dominant allele at the frizzle gene produce curly feathers, have very high body temperature, and lay few eggs. This is an example of a. polygenic traits. b. pleiotropy. c. epista...

Genetics Final Exam (Final exam for Pittcock Genetics) Questions and Correct Answers (Verified by Expert). What are deleterious genes and list one example alleles whose phenotype results in significantly reduced fitness of an animal; Dexter cattle - short legs Genetics The scientific study of heredity and hereditary variation. Gregor Mendel is often referred to as "Father of Genetics" What plant did Gregor Mendel study? peas Why was Mendel more successful than other researchers? (wha...