BIO 182 Exam 1 Questions with 100% Correct Answers | Verified | Updated 2024

BIO 182 Exam 1 Questions with 100% Correct Answers | Verified | Updated 2024 Diploid Cell - answerA cell containing two sets of chromosomes (2n), one set inherited from each parent. Haploid cell - answerA cell containing only one set of chromosomes (n). Crossover - answerexchange of genetic material between non-sister chromatids resulting in chromosomes that incorporate genes from both parents of the organism Interkinesis - answerPeriod of time between meiosis I and meiosis II during which no DNA replication takes place, chromosomes decondense, and nuclear envelope reforms How does Meiosis II contrast with Meiosis I and Mitosis? - answerIt is nearly identical to Mitosis, diviosion of sister chromatids in daughter cells from Meiosis What is the blending theory of inheritance? - answeroffspring exhibit traits that are a blend of parental characteristics What were gregor mendels findings? - answerDominant and recessive traits what are dihybrid crosses? - answercrosses that examine the inheritance of two different traits What is linkage? - answerThe case where 2 genes are close together on the same chromosome, such that they do not assort independently in meiosis. what is epistasis? - answerwhere one gene modifies the expression of another gene(fur color in mice) what are karyotypes? - answernumber and physical appearance of chromosomes (length, banding pattern, centromere position) what are the major types of chromosomal abnormality? - answer1. altered chromosome number: duplication or loss of entire chromosomes, changes in number of complete sets of chromosomes 2. chromosomal structural rearrangements Nondisjunction - answerfailure of homologous chromosomes or sister chromatids to seperate during meisosi