Number of puppies: 12
Mother's Phenotype: Yellow Lab
# of Chocolate Labs: 5 (Visible on the left picture)*
# of Black Labs: 7 (Some visible, some hidden)
# of Yellow Labs: 0 *
Father's Phenotype?

*Note that I have confirmed with Mr. Bartlett that these labs were chocolate, not yellow as the lighting suggests.

Remember this..

• Note that the mother has yellow fur, a brown nose and brown lips & eye rims. Mother is genotype eebb.
• She has no yellow labs, which means that her chocolate labs are either Eebb or EEbb.
• The black labs are either EeBB, EEBB, EeBb or EEBb

• Father cannot be a yellow lab, otherwise there would be yellow labs (in which there are none).

• If the father was a chocolate lab:

Rachel Putri Utomo
Block F, Honors Biology
Mr. Kevin Quick
Academic Year 2013-2014