Homework Assignment #1:
Answers

Question 1

Each F family is the result of sampling both male and female gametes. Small samples result in greater deviations from the expected 3:1 ratio.

Question 2

genot

PPBB x ppbb F PpBb

PP x pp F 3/4 P_:1/4 pp
BB x bb F 3/4 B_:1/4 bb

Question 3

RRRR x rrrr ÷ F RrRr
Rr x Rr 3/4 R_: 1/4rr
Rr x Rr 3/4 R_: 1/4rr

genot

The Fratio is	9/16 R_R_
	3/16R_rr		15/16 purple
	3/16 rrR_
	1/16 rrrr	yellow

Question 4

(0.51) = P(first child girl) P(second child girl)
(0.51) = 0.2601

0.51 + 0.49 = 1 because we add mutually exclusive events.