If a mother carries a recessive allele for a genetic disorder, such as cystic fibrosis, under what circumstances will her childr
en inherit the disorder? The children's father must also carry the recessive allele. The mother's father must also carry the recessive allele The paternal grandfather must also carry the recessive allele. The children must be female like the mother to inherit the disorder
2 answers:
Answer:
The correct answer would be "The children's father must also carry the recessive allele".
Cystic fibrosis is an autosomal recessive disorder. Thus, a person must homozygous recessive in order to produce a phenotype.
Let C and c be the allele of the gene responsible for the disease. C is the dominant allele which codes for normal physiology and c be the recessive allele which codes for the disease when present in homozygous condition.
The mother is the carrier of the diseases that means she is heterozygous (Cc) for the disease.
In order that her children would get the disease, the father must carry c allele. He can be Cc or cc.
You might be interested in
A prophage is a bacteriophage (often shortened to "phage") genome inserted and integrated into the circular bacterial DNA chromosome or exists as an extrachromosomal plasmid. This is a latent form of a phage, in which the viral genes are present in the bacterium without causing disruption of the bacterial cell.
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬