I haven't been able to figure out how to put a decent Punnett Square on these forums. The pastel produces two types of gametes (P s and p s), and the bumble bee produces four types of gametes (P S, p S, P s, and p s. S = spider, s = normal, P = pastel, and p = normal). This makes a 4x2 grid:
PP Ss | Pp Ss
Pp Ss | pp Ss
PP ss | Pp ss
Pp ss | pp ss

Result:
1/8 PP Ss = killer bee
1/8 PP ss = super pastel
2/8 Pp Ss = bumblebee
2/8 Pp ss = pastel
1/8 pp Ss = spider
1/8 pp ss = normal

In my opinion, the branching system is better than the Punnett Square for two or more loci. I can do a branching system with pencil and paper in half the time and with fewer mistakes than a Punnett Square. But a branching system is harder to do on these forums than a Punnett Square.

Paul Hollander

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• Quick question - winkle, Wed May 17 07:46:30 2006
• RE: Quick question - AFR, Wed May 17 09:25:27 2006
• RE: Quick question - pizzacoolio, Wed May 17 12:09:05 2006
• No spiders... - CherylBald, Wed May 17 13:17:22 2006
• RE: No spiders... - Paul Hollander, Wed May 17 13:53:19 2006
• RE: No spiders... - BallBoutique, Wed May 17 16:41:57 2006
• RE: No spiders... - Paul Hollander, Wed May 17 18:20:56 2006
• RE: No spiders... - pizzacoolio, Wed May 17 22:22:30 2006
• RE: No spiders... - pizzacoolio, Wed May 17 22:26:24 2006
• HTML Tables - RandyRemington, Wed May 17 22:53:23 2006
• RE: HTML Tables - Paul Hollander, Thu May 18 09:34:21 2006
• RE: HTML Tables - RandyRemington, Thu May 18 21:45:49 2006
• Punnett Square short cut - Paul Hollander, Thu May 18 09:53:35 2006
• Ooops your right... - CherylBald, Thu May 18 08:02:43 2006
• RE: Quick question - BNixon, Sun May 21 07:23:44 2006