Chapter 15 Review Questions
study of cells - CORRECT ANSWER-cytology
studied fruit flies - CORRECT ANSWER-thomas hunt morgan
scientific name of a fruit fly - CORRECT ANSWER-Drosophila melanogaster
reasons fruit flies are good genetic specimen - CORRECT ANSWER-prolific
breeders, generation time of two weeks, 3 pairs of autosomes, and a pair of sex
chromosomes
genes on the same chromosome - CORRECT ANSWER-linked genes
recombination frequencies are used to produce - CORRECT ANSWER-chromosome
maps
a "centimorgan" is - CORRECT ANSWER-one map unit
genes on X chromosomes which control traits unrelated to sex - CORRECT
ANSWER-sex linked genes
SRY gene - CORRECT ANSWER-sex determining region of the Y chromosome
sex linked disorders - CORRECT ANSWER-duchenne muscular dystrophy,
hemophilia, and red green colorblindness
inactive X in females - CORRECT ANSWER-barr body
failure of chromosomes to separate - CORRECT ANSWER-nondisjunction
abnormal chromosome number - CORRECT ANSWER-aneuploidy
2n +1 - CORRECT ANSWER-trisomy
2n -1 - CORRECT ANSWER-monosomy
more than two complete sets of chromosomes - CORRECT ANSWER-polyploidy
chromosome fragment joins non-homologous chromosome - CORRECT
ANSWER-translocation
chromosome fragment joins sister chromatid - CORRECT ANSWER-duplication
study of cells - CORRECT ANSWER-cytology
studied fruit flies - CORRECT ANSWER-thomas hunt morgan
scientific name of a fruit fly - CORRECT ANSWER-Drosophila melanogaster
reasons fruit flies are good genetic specimen - CORRECT ANSWER-prolific
breeders, generation time of two weeks, 3 pairs of autosomes, and a pair of sex
chromosomes
genes on the same chromosome - CORRECT ANSWER-linked genes
recombination frequencies are used to produce - CORRECT ANSWER-chromosome
maps
a "centimorgan" is - CORRECT ANSWER-one map unit
genes on X chromosomes which control traits unrelated to sex - CORRECT
ANSWER-sex linked genes
SRY gene - CORRECT ANSWER-sex determining region of the Y chromosome
sex linked disorders - CORRECT ANSWER-duchenne muscular dystrophy,
hemophilia, and red green colorblindness
inactive X in females - CORRECT ANSWER-barr body
failure of chromosomes to separate - CORRECT ANSWER-nondisjunction
abnormal chromosome number - CORRECT ANSWER-aneuploidy
2n +1 - CORRECT ANSWER-trisomy
2n -1 - CORRECT ANSWER-monosomy
more than two complete sets of chromosomes - CORRECT ANSWER-polyploidy
chromosome fragment joins non-homologous chromosome - CORRECT
ANSWER-translocation
chromosome fragment joins sister chromatid - CORRECT ANSWER-duplication
