Assuming negligible inbreeding and recombination loss, calculate the proportion of F1 hybrid vigor retained in advanced generations of each of the...

1.    Assuming negligible inbreeding and recombination loss, calculate the proportion of F1 hybrid vigor retained in advanced generations of each of the following composite beef breeds:

a.    RX3 (1/2 Red Angus, 3/8 Hereford, 1/8 Red Holstein) (1 pt)

b.    Barzona (approximately 1/8 Hereford, 5/32 Angus, 3/8 Afrikaner, 5/16 Shorthorn, 1/32 Brahman) (1 pt)

c.    What generalized statement can be made about the difference in retained vigor for these two composite groups? (1 pt)