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biol1201 Third Exam Study part b

biol1201 Third Exam Study part b - Chapter 14 Mendel and...

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Unformatted text preview: Chapter 14: Mendel and the Gene Idea Word Roots • co- = together ( codominance : phenotype in which both dominant alleles are expressed in the heterozygote) •-centesis = a puncture ( amniocentesis : a technique for determining genetic abnormalities in a fetus by the presence of certain chemicals or defective fetal cells in the amniotic fluid, obtained by aspiration from a needle inserted into the uterus) • di- = two ( dihybrid cross : a breeding experiment in which offspring of a cross of parental varieties differing in two traits are mated) • epi- = beside; -stasis = standing ( epistasis : a phenomenon in which one gene alters the expression of another gene that is independently inherited) • geno- = offspring ( genotype : the genetic makeup of an organism) • hetero- = different ( heterozygous : having two different alleles for a trait) • homo- = alike ( homozygous : having two identical alleles for a trait) • mono- = one ( monohybrid cross : a breeding experiment that crosses offspring of a cross of parental varieties differing in a single character) • pedi-...
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biol1201 Third Exam Study part b - Chapter 14 Mendel and...

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