Genotypes+in+sperm+(open)

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D 1 and D 2 represent two different forms of one gene (D). Also, Q 1  and Q 2  represent two different forms of another gene (Q). What are the possible sperm cell genotypes if the original cell has a genotype of D 1 D 2 Q 1 Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">?

====<span style="font-family: Arial,Helvetica,sans-serif;">A. D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">,D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">,Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">,Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">. ==== ====<span style="font-family: Arial,Helvetica,sans-serif;">B. D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">. ==== ====**<span style="font-family: Arial,Helvetica,sans-serif;">C. D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">. **==== ====<span style="font-family: Arial,Helvetica,sans-serif;">D. D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">, D <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">2 <span style="font-family: Arial,Helvetica,sans-serif;">Q <span style="font-family: Arial,Helvetica,sans-serif; vertical-align: sub;">1 <span style="font-family: Arial,Helvetica,sans-serif;">. ====


 * bold=**correct answer

Question Identifier: GCA 2 (revised JS 3)

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