Genetics Problems Answers

 

 

  1.

      w w
W Ww Ww
W Ww Ww

 

 

 

 

 

 

 

 

 

 

 

 

 

2. b b
B Bb Bb
b bb bb

 3.     1 : 1  Brown to white - Charly is Bb and heterozygous

 

 

 

 

 

 

 

 

 

 

 

 

4. t t
T Tt Tt
t tt tt

        50% are tt unable to roll their tongues

 

 

 

 

 

 

 

 

 

 

 

 

5. A i
B AB Bi
i Ai ii

    answer is choice a)

 

 

 

 

 

 

 

 

 

 

 

 

 

6.  X s  Y
X S X SX s X SY
X s X sX s X sY

    a)   for a single chick the chance is 50% : 50%
    b)   for a male chick the chances are also 50% : 50%

 

 

 

 

 

 

 

 

 

  

 

7. c c
C Cc Cc
c cc cc

    The chances are 50% : 50%