Question

Please answer the following question. CIrcle the final answer. Thanks in advance.

Red-green color blindness is a human X-linked recessive disorder. The normal allele, XB, is dominant to the mutant allele, Xb, Jill has normal color vision, but her father is color blind. Jill marries Tom, who also has normal color vision. Jill and Tom have a daughter who has Turner syndrome and is color blind How and from whom did the daughter inherit colorblndness? O a maternal nondisjunction event followed by fertilization by sperm carrying Xb O an ovum carrying Xb followed by fertilization by sperm from a paternal nondisjunction event O an ovum carrying XB followed by fertilization by sperm from a paternal nondisjunction event O a maternal nondisjunction followed by fertilization by sperm carrying Xs O a maternal nondisjunction followed by fertilization by sperm lacking sex chromosomes

Answer 1

Jill father is colorblind(XbY). Hence it will pass Xb allele to her daughter. Genotype of daughter is XBXb ( normal).

She marries with Tom. Tom is normal. It means genotype of Tom is XBY.

Мobier Pather Larents Xxb Normal X Nomal ln3unctian XBy child Turner Syndrome Eolor bind With That's why Ovum Hausing b allae and pyspermNen child is broduced by cqunction occu in in Meiosiametefornation e Father

Red-green color blindness is a human X-linked recessive disorder. The normal allele, X5, is dominant to the mutant allele, Xo. Jill has normal color vision, but her father is color blind. Jill marries Tom, who also has normal color vision. Jill and Tom have a daughter who has Turner syndrome and is color blind. How and from whom did the daughter inherit color blindness? a maternal nondisjunction event followed by fertilization by sperm carrying XD an ovum carrying X° followed by fertilization by sperm from a paternal nondisjunction event an ovum carrying XD followed by fertilization by sperm from a paternal nondisjunction event a maternal nondisjunction followed by fertilization by sperm carrying X a maternal nondisjunction followed by fertilization by sperm lacking sex chromosomes