30, 9 (0 complete) This Quiz: 9 pts possible o: A gene is composed of two allele

Question

30, 9 (0 complete) This Quiz: 9 pts possible o: A gene is composed of two alleles. An allele can be either do ninant or recessive. Suppose that a husband and wife, who are both carriers of the sickle-cell anemia allele but do not have the disease, decide to have a child. Because both parents are carriers of the Qsease, each has one dominant normal-cell allele (S) and one recessive sickle-cell allele (s). Therefore, the genotype of each parent is Ss. Each parent contributes one allela to his or her offspring with each allele being equally likely. Complete parts a) through c) below a) Genes are always written with the dominant gene first. Therefore, there are two instances the offspring could have genotype Ss (one if the mother contributes the dominant allele and the father contributes the non-dominant allele; and one if the father contributes the dominant allele and the mother contributes the non-dominant allele). List the other two possible genotypes of the offspring (Use a comma to separate answers as needed) b) What is the probability that the offspring will have sickle-cell anemia? In other words, what is the probability that the offspring will have genotype ss? Interpret this probability The probability is This means that there is a (Type integers or decimals. Do not round.) % chance that a randomly selected offspring will have sickle cel anemia c) What is the probabililythat the offspring will not have sickle-cell anemia but will be a carrier (one normal-cel allole and one sickle-cell alel)? Interpret this probability This means there is a 1% chance that a randomly selected offspring wil be a carrier but wil not have sikle cel a en a The probability is Enter your answer in each of the anewer boxos Before you start STATISTICS to search DOLL

Explanation / Answer

a)other two possible genotype = { ss, SS }

b)here as this one event(ss) out of 4 possible outcome therefore probability =1/4 =0.25

the probability is 0.25 .this means there is 25% chance that a .............

c)as there are two outcome sS and Ss out of 4.

hence the probability is 0.5 . this means there is a 50% chance that a randomely............

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