Pre-AP Ch. 11
Terms : Hide Images [1]
7547317 | genetics | scientific study of heredity | |
7547318 | fertilization | process in sexual reproduction in which male and female reproductive cells join to form new cells | |
7547319 | true breeding | term used to describe organisms that produce offspring identical to themselves if allowed to self pollinate | |
7547320 | trait | specific charecteristic that varies from one individual to another | |
7547321 | hybrid | offspring of crosses between parents with different traits | |
7547322 | gene | sequence of DNA that codes for a protein and thus determines a trait | |
7547323 | allele | one of a number of different forms of a gene | |
7547324 | segregation | separation of alleles during gamete formation | |
7547325 | gamete | specialized cell involved in sexual reproduction | |
7547326 | probability | likelihood that a particular event will occur | |
7547327 | Punnett square | diagram showing the gene combinations that might result from a genetic cross | |
7547328 | homozygous | term used to refer to an organism that has two identical alleles for a particular trait | |
7547329 | heterozygous | term used to refer to an organism that has two different alleles for the same trait | |
7547330 | phenotype | physical characteristics of an organism | |
7547331 | genotype | genetic makeup of an organism | |
7547332 | independant assortment | independant segregation of genes during the formation of gametes | |
7547333 | incomplete dominance | situation in which one allele is not completely dominant over another | |
7547334 | codominance | situation in which both alleles of a gene contribute to the phenotype of the organism | |
7547335 | multiple alleles | three or more alleles of the same gene | |
7547336 | polygenic trait | trait controlled by two or more genes | |
7547337 | homologous | term used to refer to chromosomes that each have a corresponding chromosome from the opposite sex parent | |
7547338 | diploid | term used to refer to a cell that contains both sets of homologous chromososmes | |
7547339 | haploid | term used to refer to a cell that contains only a single set of chromosomes and therefore only a single set of genes | |
7547340 | meiosis | process by which the number of chromosomes in a cell is cut in half through the separation of homologous chromosomes in a diplod cell | |
7547341 | tetrad | structure containing 4 chromatids that forms during meiosis | |
7547342 | crossing over | process in which homologous chromosomes exchange portions of their chromatids during meiosis | |
7547343 | gene map | diagram showing the relative locations of each known gene on a particular chromosome |