a) a mating between an individual of unknown genotype and an individual homozygous recessive for the trait of interest
b) a mating between an individual of unknown genotype and an individual heterozygous for the trait of interest
c) a mating between an individual of unknown genotype and an individual homozygous dominant for the trait of interest
d) a mating between two individuals heterozygous for the trait of interest
e) None of the choices are correct.
2007-10-28 08:10:15 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Botany
testcross
A genetic test for heterozygosity in which an organism of dominant phenotype, but unknown genotype, is crossed to an organism recessive for all markers in question.
http://dictionary.reference.com/browse/testcross
2007-10-28 09:34:34 · answer #1 · answered by eyepopping hideous female troll 4 · 2⤊ 0⤋
Choice (a) is correct.
2007-10-28 21:38:10 · answer #2 · answered by ursaitaliano70 7 · 0⤊ 0⤋