In the garden pea,Mendel found that tall ( D )plants,green pods ( G ),and inflated pods ( C )were dominant to dwarf (d )plants,yellow pods ( g ),and constricted pods ( c ). Determine the chances of producing the offspring D__ G__ cc from a cross of D d G g C c x D d G g C c.
A) 1/16
B) 3/16.
C) 3/8
D) 9/64
E) 3/8.

Question

In the garden pea,Mendel found that tall ( D )plants,green pods ( G ),and inflated pods ( C )were dominant to dwarf (d )plants,yellow pods ( g ),and constricted pods ( c ). Determine the chances of producing the offspring D__ G__ cc from a cross of D d  G g C c  x  D d  G g  C c.  
A) 1/16
B) 3/16.
C) 3/8
D) 9/64
E) 3/8.

Quizplus · Accepted Answer

To find the probability of producing offspring with the genotype D__ G__ cc from the cross Dd Gg Cc x Dd Gg Cc, we need to consider each trait separately and then multiply the probabilities.1. For the D trait (tallness), the offspring must be D_ (either DD or Dd). The probability of getting a D allele from one parent is 3/4 (either DD, Dd, or dD, but not dd). Since the trait is considered from both parents independently, the probability remains 3/4.2. For the G trait (green pods), the probability is the same as for the D trait, 3/4, because the genetic situation is identical.3. For the C trait (inflated vs. constricted pods), we want cc, which means getting a c from both parents. The probability of getting a c from one parent is 1/2 (either Cc or cC, but not CC or cc for a single allele). So, the probability of getting cc from both parents is 1/2 * 1/2 = 1/4.Multiplying these probabilities together gives us the overall probability: 3/4 (for D) * 3/4 (for G) * 1/4 (for cc) = 9/64.

In the Garden Pea,Mendel Found That Tall ( D )Plants,green