Biology 101: Genetics Flashcards Actual Exam Questions And Accurate Answers Verified Complete Document For Study Newest

BIOLOGY 101: Genetics Flashcards actual exam questions and accurate answers verified complete document for study newest Q1 Define: gene Answers: A nucleic acid sequence that determines some trait of an organism. In eukaryotes, genes are composed of DNA and located on chromosomes. Many aspects of inheritance were discovered by Gregor Mendel, though the term gene had not yet been coined. Instead, Mendel called genes factors. 3 Q Define: phenotype Answers: Refers to a physical or observable characteristic of an organism, determined by its genotype.For example, if a pea plant is homozygous for the Y allele and is yellow in color, yellow would be its phenotype. 4 Q Define: genotype Answers: Refers to the actual set of alleles possessed by an organism. For example, if a pea plant is homozygous for the Y allele and is yellow, YY would be its genotype. 5 Q What term describes the position of a particular gene on a chromosome? Answers: locus (plural: loci)Each locus falls at the same relative position in a species. This allows the construction of genetic maps. 6 Q Define: allele Answers: A variation of a specific gene, usually denoted by a single letter. Humans always have two alleles at each