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Quiz

Answer Key.

Converting Genotype into Phenotype:

What do the following individuals look like?

    1- If A is dominant to a, what do "AA" "Aa" and "aa" look like?

    2- If B and b are codominant, what do "BB" "Bb" and "bb" look like?

    3- If c is recessive to C, what do "CC" "Cc" and "cc" look like?

    4- If D is dominant to both d1 and d2, and d1 and d2 are codominant to each other, what do "DD" "Dd1" "Dd2" "d1d1" "d2d2" and "d1d2" look like?

Beginner:
Practice FOIL:

    5- BB x Bb
    6- bb x Bb
    7- bb x bb
    8- Bb x Bb
    9- BB x bb

Intermediate:
Combine two results. Use FOIL on each trait, then combine with a grid.

    10- CCDD x CcDD
    11- ccDd x ccdd
    12- CCdd x ccDD
    13- CcDd x CcDd
    14- Ccdd x CcDd

Advanced:
Use FOIL for each trait to get all three results. Combine two into a grid, then add the third.

    15- aabbcc x AaBbCc
    16- aaBbCc x AabbCc
    17- AaBbCc x aaBbcc
    18- AaBbCc x AaBbCc

Expert:
Use the shortcut shown in Step 9 by multiplying "odds per locus" to find the desired outcome.

    19- When crossing AaBbCcDdee x aaBbccDdEe, what are the odds of getting aabbccddee?

    20- When crossing AaBbCcDdEe X AaBbCcDdEe, what are the odds of getting aabbCcddee?

    21- When crossing AaBbCcDdEe X AaBbCcDdEe, assuming "e" is recessive, what are the odds of getting offspring showing recessive traits a, b, c, and d, but not e?

Answer Key.



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