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Details Title: Genetics Description: Vocabulary Total Flash Cards: 22 Created: 05/20/2004 17:31:57	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Allele Definition Contrasting genes that appear on the same site on a chromosome. Symbolized with the same symbol. EX: D for tall and d for dwarf Term Autosome Definition A chromosome other than the sex chromosomes Term Chromosomes Definition A thread like body in the nucleus of a cell. They carry genes which are arranged in linear order. Term Dihybrid Definition An individual that is heterozygous with respect to two pairs of alleles. A PRODUCT OF A CROSS BETWEEN HOMOZYGENOUS PARENTS DIFFERING IN TWO RESPECTS. Term Dihybrid Cross Definition A genetic cross involving 2 pairs of genes. Term Diploid (2n) Definition Two sets of chromosomes. The number characteristics of cells prior to meiosis. Term Dominance Definition An inherited trait expressed when the controlling gene is either homozygenous (BB or bb) or heterozygenous (Bb) Term Fsub 1 Definition The first filial generation. The first offspring generation from a given mating. Term F sub 2 Definition The second filial generation, produced by self pollination of the Fsub1 Term Gamete Definition A mature female or male reproductive cell. (Sperm or egg) Term Gene Definition A hereditary determiner. A unit of inheritance. A unit of DNA Term Genotype Definition The genetic constitution(gene make up) of an organism(DD, Dd, dd) Term Haploid Definition A single set of chromosomes. Characteristic of gametes. Also called monoploids. Term Heterozygenous Definition Having contrasting genes for a trait. (Bb) produce unlike gametes. Term Homologous Chromosomes Definition Chromosomes that are generally similar in size and shape, and occur in pairs. One from a male and one from a female parent. Term Homozygous Definition Having two genes of the same kind for a trait (DD, dd), The gametes are therefore all alike. Term Hybrid Definition An offspring of homozygous parents differing in one or more genes. Term Monohybrid Definition An offspring of two homozygous parents differing from each other in only one gene locus. Term Phenotype Definition The observed characteristic produced by a set of genes. (color, height), Individuals of the same phenotype may look alike, but may not breed alike. Term Progeny Definition Offspring. Term Punnett Square Definition A set of boxes used in finding all possible gametic combinations when working with genetic problems. Term Recessive Definition The member of a pair of contrasting genes that is not expressed. A recessive trait is expressed only when homozygenous (bb)