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Cornsnake Morph Guide ®Genetics TutorialCharles Pritzel

Answers to Genetics Practice Problems

Page 6:

1A Normal
1B Normal
1C Shows Triangle Trait

2A Shows Square Trait
2B Shows Square Trait
2C Normal

3A Shows Diamond Trait
3B Normal
3C Intermediate (Diamond/Normal)


Page 19:

1 Aa.
2 Aa, aa.
3 Aa, AA.
4 AA, Aa, aA, aa.
5 AaBb.

6- Aa aa
Bb AaBb aaBb
bb Aabb aabb


7- Aa aa
BB AaBB aaBB
Bb AaBb aaBb
bB AabB aabB
bb Aabb aabb


7- AA Aa aA aa
BB AABB AaBB aABB aaBB
Bb AABb AaBb aABb aaBb
bB AAbB AabB aAbB aabB
bb AAbb Aabb aAbb aabb


9- AaBbCc.

10- Aa aa
Bb AaBbcc aaBbcc
bb Aabbcc aabbcc


11- (step 1) Aa aa
Bb AaBb aaBb
bb Aabb aabb


11- (step 2) CC Cc
AaBb AaBbCC AaBbCc
aaBb aaBbCC aaBbCc
Aabb AabbCC AabbCc
aabb aabbCC aabbCc


12- (step 1) AA Aa aA aa
BB AABB AaBB aABB aaBB
Bb AABb AaBb aABb aaBb
bB AAbB AabB aAbB aabB
bb AAbb Aabb aAbb aabb


12- (step 2) CC Cc cC cc
AABB AABBCC AABBCc AABBcC AABBcc
AABb AABbCC AABbCc AABbcC AABbcc
AAbB AAbBCC AAbBCc AAbBcC AAbBcc
AAbb AAbbCC AAbbCc AAbbcC AAbbcc
AaBB AaBBCC AaBBCc AaBBcC AaBBcc
AaBb AaBbCC AaBbCc AaBbcC AaBbcc
AabB AabBCC AabBCc AabBcC AabBcc
Aabb AabbCC AabbCc AabbcC Aabbcc
aABB aABBCC aABBCc aABBcC aABBcc
aABb aABbCC aABbCc aABbcC aABbcc
aAbB aAbBCC aAbBCc aAbBcC aAbBcc
aAbb aAbbCC aAbbCc aAbbcC aAbbcc
aaBB aaBBCC aaBBCc aaBBcC aaBBcc
aaBb aaBbCC aaBbCc aaBbcC aaBbcc
aabB aabBCC aabBCc aabBcC aabBcc
aabb aabbCC aabbCc aabbcC aabbcc


13- aa = 1/4. bb = 1/2. cc = 1/2, dd = 1/4. Total is 1 in 64.

14- aa = 1/2. bb = 1/2. cc = 1/2. dd = 1/2. Total is 1 in 16.

15- aa = 1/4. bb = 1/4. cc = 1/4. dd = 1/4. Total is 1 in 256.

16a- aa = 1/4. bb = 1/4. Total is 1 in 16.

(Ax means Aa, aA, or AA.)
(Dx means Dd, dD, or DD.)
16b- Ax = 3/4. bb = 1/4. cc = 1/4. Dx = 3/4. Total is 9 in 256.

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