30 points , if you answer this question and right for sickle-cell disease, assume s is the dominant allele and s the recessive allele. which genotypes are possible for offspring of a carrier (ss) and a person who lacks the sickle-cell allele (ss)? a. ss, ss b. ss only c. ss, ss d. ss only

SS, Ss       is the answer

C. SS, Ss

Explanation:

Remember when doing the recessive alleles and dominant alleles you just need to do a punnet square, putting both alleles of the parents and set up the possibilities of the offspring.:

                            Mother

Father                S            s

   S                    SS         Ss

   S                    SS         Ss

So the four options are only SS and Ss, so the recessive gene will never actually be developed because the dominant is present in all of the combinations.

i do not know and i have a 100 in this class

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