BIO 121- GENETICS 57 Exam Study Questions with 100% Correct Answers | Verified

genome - ️️all the DNA of the cell - All the genetic information in an organism; all of an organism's chromosomes. gene - ️️the genetic information required to produce a single protein - A segment of DNA on a chromosome that codes for a specific trait chromatin - ️️uncondensed chromosomal DNA homologous chromosomes - ️️one maternal, one paternal; two chromosomes that carry the game genetic information, but possibly code for different phenotypes - Chromosomes that have the same sequence of genes and the same structure locus - ️️location on genome where a particular gene resides anatomy of a chromosome - ️️- two sister chromatids joined by a centromere - both ends: telomeres phenotype - ️️observed physical characteristic genotype - ️️an organism's genetic makeup, or allele combinations (e.g. Aa) mutations - ️️changes in DNA, can be inherited, driving factor of evolution Think: What is the ultimate source of genetic variability?