Download Test 2 Key | BIOL 3000 - GENETICS and more Quizzes Genetics in PDF only on Docsity!
When does recombination occur? Prophase I of meiosis TERM 2 DNA microsatellite regions are effective for molecular genotyping because... DEFINITION 2 they are highly variabletheir mode of inheritance is co- dominance TERM 3 When in an electric field, DNA travels toward what end and why? DEFINITION 3 towards the positively charged end because it is negatively charged TERM 4 A somatic cell of a fruit fly contains how many total chromosomes? DEFINITION 4 8 TERM 5 Monosomy 3 fruit fly, how many autosomes will a somatic cell contain? DEFINITION 5 2(3) - 1 = 5because one of the chromosome pairs is the sex chromosomesso it is not 2(4) - 1 = 7
An alignment of the complete set of chromosomes possessed by an organism idiogram/karyotope TERM 7 Meiotic nondisjunction occurs during meiosis I; what is not separating properly? DEFINITION 7 tetrads TERM 8 A person with 1 X chromosome, 0 Y chromosomes, and Trisomy 21 has what? DEFINITION 8 Turner's and Down's TERM 9 Most common aneuploidy seen in living humans has to do with... DEFINITION 9 sex chromosomes (60%)autosomal accounts for 40% TERM 10 Terminal deletion associated w/ regions of CGG repeats on X chromosome of humans DEFINITION 10 Fragile X Syndrome
When considering DNA structure, we would say that the strands are... antiparallel TERM 17 Using the rules of the Watson&Crick model, a dsDNA that contains 1000 bp would be how long? DEFINITION 17 1000*0.34 = 340 nm TERM 18 Complementarity in DNA structure describes... DEFINITION 18 H bonding between bases TERM 19 dsDNA has 560 nucleotides; how many complete turns would be found in the double helix? DEFINITION 19 560/2 = 280 base pairs280/10 bp per turn = 28 turns TERM 20 If a DNA molecule of 50 bp has 15 C, how many T does it have? DEFINITION 20 15 C and G50-15 = 35 T and A
