A given chromosome contains three linked genes, B, T, and R that encode for the phenotypes:
B = Black, b = white
T = Tall, t = short
R = Round, r = square
To determine if the genes are linked a standard three-point testcross was done and the resulting offspring had the following phenotypes. Answer the based on this information.
52 Black, tall, round BTR
315 Black, short, square (Highest) Btr
75 Black, tall, square BTr
9 Black, short, round (Lowest) BtR
48 White, short, square btr
321 White, tall, round (Highest) bTR
62 White, short, round btR
7 White, tall, square (Lowest) bTr
What was the correct genotype of the heterozygous individual (IN THE RIGHT ORDER!)?
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