Question

Two highly inbred strains of the same plant species differ in stem length. The long stem strain has an average stem length of 16 cm, and the short stem strain has an average stem length of 10 cm. The strains were crossed to form F₁ and F₂ populations, and the variances in stem length for these populations were found to be 0.36 cm² and 0.81 cm², respectively.

What is your best estimate of the number of genetic loci affecting stem length in these plants?

6 loci

2 loci

10 loci

1 locus

Answer 1

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