genetics 0.0 / 5 ? BiologyUniversityAll boards Created by: JessCreated on: 16-05-13 13:02 What test is used to detect mutagenesis in a chemical? The Ames Test. 1 of 11 What are the 4 repair mechanism that deal with UV damage? Photoreactivation, Excision repair, Post-replication recombinational repair and SOS processing. 2 of 11 What are the 4 main stages of the cell cycle? DNA replication (S), Mitosis (M) separated by two gap periods (G1 and G2). 3 of 11 When do chiasmata form? During prophase I of meiosis. 4 of 11 What is Recombination Frequency (RF)? (number of recombinants/total progeny) x 100 5 of 11 What does and RF of 50% indicate? That the genes are not linked and are recombining freely. The two genes are on non-homologous chromosomes. 6 of 11 What are Multifactorial traits? Traits influenced by multiple genes and the environment. 7 of 11 What distribution to quantitative traits show? A normal distribution (a bell shaped curve). 8 of 11 What is the Karyotype? The number and visual appearance of the chromosomes in the cell nuclei. 9 of 11 What is anueploidy? A condition in which the chromosome number is not an exact multiple of the haploid number. 10 of 11 How do bacteria divide? By binary fission to produce two daughter cells. 11 of 11
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