what are the parents of the following groups of offspring from guinea pig crosses? Give all possibilities?

Question

A) One half of the offspring are black
B) Three-fourths of the offspring are black
C) One half of the offspring are hybrid black
D) all of the offspring are black
E) all of the offspring are white
F) one half of offspring are white
G) one fourth of then offspring are white

Answer 1

You need to specify whether black or white are dominant or if they are co-dominant.

Answer 2

I'm guess Black is dominate and White is recessive and there's no intermediate...
a. Bb x bb (hetero w/ a homo rec.)
b. Bb x Bb (2 hetero)
c. BB x Bb (hetero and homo dom)
d. BB x bb OR Bb x Bb
e. bb x bb (2 homo rec)
f. Bb x bb (hetero and homo rec)
g. Bb x Bb (2 hetero)

Hope that helps.