Bio 106 D, Genes, Week 5
Bio 106 D, Genes, Week 5 BIO*106*D
Popular in Biology: The Science of Life
Popular in Biology
verified elite notetaker
This 2 page Class Notes was uploaded by Lydia Laws on Wednesday October 12, 2016. The Class Notes belongs to BIO*106*D at Elon University taught by Kathleen Gallucci in Fall 2016. Since its upload, it has received 3 views. For similar materials see Biology: The Science of Life in Biology at Elon University.
Reviews for Bio 106 D, Genes, Week 5
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 10/12/16
Genes Lesson 2: Heredity: the transmission of traits from one generation to the next. Genetics: the scientific study of heredity. th Its roots can be traced back to the 19 century experiments of Gregor Mendel. o Worked on pea plants in his garden and was able to deduce many of the basic principles of inheritance. o He determined that some discrete substances were passed from parent to offspring during reproduction o In all, Mendel deduced the underlying principles of genetics. CHARACTERS AND TRAITS: Character: an inherited feature that varies from one individual to another Traits: characters that come in two or more variations. Examples a purple flower trait and a white flower trait, eye color, hair color ALLELES: alternate forms of a particular gene. Important Reminder: Plants and animals are diploid meaning that their chromosomes and genes come in matched sets. One from the mother and one from the father. Heterozygous: two different alleles for a gene Homozygous: two identical alleles for a gene DOMINATN VS. RECESSIEV ALLELES: Dominant Allele: allele that determines the organism’s appearance for a character Recessive Allele: has no noticeable effect, although it can be passed down to offspring GENOTYPE VS. PHENOTYPE: Phenotype: an organism’s physical traits Genotype: the underlying genetic makeup One of the main principles of genetics: in a combination with the environment, genotype causes the phenotype through the action of genes. A PUNNET SQUARE CAN BE USED TO PREDICT THE RESULTS OF A GENETIC CROSS: Genetic Cross: used to predict what traits will be expressed in offspring P-generation: in the genetic cross, are the 2 individual parents, which are crossed to produce the… F1 generation: the first generation offspring Monohybrid Cross: a genetic cross that follows just one character of the two parentsexample being Labrador coat color Test Cross: a mating between an individual of the dominant phenotype, but unknown genotype and a homozygous individual. Law of Segregation: when the pair of alleles for any given character separates, one allele goes into half the gametes and the other allele going to the other half of gametes. In other words, occurs when two members of the pair segregate during gamete formation.
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'