A scientist uses a diagram to follow the offspring of guinea pigs with different fur types. In guinea pigs, short fur is dominant to
long fur, and black fur is dominant to white fur.
Long black fur
Generation 1:
Parents
B.
O D.
All offspring:
short black fur
O A. / short white fur,
Generation 2:
Short white fur
What are the expected ratios of offspring in Generation 2?
long black fur,
long white fur,
X
3
short black fur,
long black fur
short black fur
?
long black fur,
16
Long black fur
long black fur,
Parents
16
All offspring:
short black fur
short white fur, short black fur
Short white fur
short white fur,
16
long white fur