Epistasis - Study guides, Class notes & Summaries

Pleitropy is when one locus Ans: affects 2 or more traits epistasis is when alleles at one locus Ans: affect the expression of alleles at a different locus linkage is when 2 or more chromosomes are Ans: on the same chromosome P is the frequency of Ans: AA H is the frequency of Ans: Aa 2 Q is the frequency of Ans: aa p is the proportion of Ans: A q is the proportion of Ans: a p+q= Ans: 1 p= Ans: P+0.5H q= Ans: Q+0.5H P+H+Q= Ans: 1 3 Hardy-Weinberg equilibrium requirement...

A cross between true-breeding green and yellow plants (green pea color is dominant) results in ... plants with 1/4 green peas, 3/4 yellow peas plants with all yellow peas plants with 1/4 yellow peas, 3/4 green peas plants with all green peas - Answer-plants with all green peas A dihybrid cross (AaBb x AaBb) will result in what offspring ratio? 4:4:2:2 1:3:1 3:1 9:3:3:1 - Answer-9:3:3:1 A individual who has two of the same allele is said to be homozygous heteromologous homologous he...

Genetics Exam #2 With Questions and Answers 100% Solved What is the molecular mechanism for imprinting a gene? a. acetylation b. methylation c. phosphorylation d. mutation e. nitration - answerB Genomic imprinting most commonly uses____ to ____genes. Select one: a. acetylation : activate b. methylation : activate c. phosphorylation : activate d. methylation : deactivate e. phosphorylation : deactivate - answerD Individuals with three copies of most autosomes do not survive. Indivi...

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...

HESI A2 BIOLOGY QUESTIONS AND ANSWERS Hierarchic Organizational system for nomenclature Kingdom Phylum Class Order Family Genus Species (Least) "Keep Penguins Cool Or Find Good Shelter" Scientific Method Observation Hypothesis Experiment Conclusion Water All life, and therefore biology , occurs in water. Properties of Water 2 Hydrogen bonds Covalently bonded to Oxygen. Hydrogen Bonding between molecules. - High specific heat - Large bodies or water stabilize...

the krebs cycle takes place in the _______ of the ___________ - ANSWERmatrix mitochondria epistasis - ANSWERarises when the allele of one gene affects or masks the expression of another in the phenotype autosome - ANSWERa chromosome that is not a sex chromosome biodiversity - ANSWERthe range and variety of genes, species and habitats within a particular region biomass - ANSWERthe total mass of living material, normally measured in a specific area over a given period of time intras...

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...

Adaptation - A trait that helps an organism survive and reproduce adventitious roots - roots that arise above ground Alleles - Different forms of a gene allopatric speciation - the process of speciation that occurs with geographic isolation Aneuploidy - Abnormal number of chromosomes. Archea - have cell walls that, do not contain peptidoglycan assotative mating - an individual is more likely to mate with another that is similar in phenotype to itself autosomal inheritance - Inheritance o...

● 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 effects of another gen...

Unit 1,2,3,4 & 5: MN 553/ MN553 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Unit 1 Q: An infant who is four days postpartum has been diagnosed with a single-gene disorder. The parents of the child have a number of questions about the etiology of the health problem, which the physician is attempting to address in detail. Which of the following teaching points most accurately captures an aspect of single-gene congenital disorders? A. Affected genes are...