A certain species of morning glories produces flowers that are blue, red, or purple. Two pure-breeding purple lines are crossed and produce F1 progeny that all make blue flowers. The F1 are allowed to self and produce 320 F2 progeny with the following distribution: 185 blue, 115 purple, and 20 red.
Which the following is NOT consistent with this information?
◦ Red-flowering plants are homozygous recessive for both genes.
◦ The pure-breeding parental parents are homozygous recessive for mutations in two different genes.
◦ Dominant gene interaction appears to result in a 9:6:1 ratio.
◦ Blue-flowering plants are either A_bb or aaB_.
◦ Analysis of the F1 and F2 progeny phenotypes suggests epistasis.
Crosses using flowers from a variegated plant
Purple-crowned fairy wren
Recently discovered species Tersicoccus phoenici under microscope
Typical characteristics of r-selected and k-selected species