An autosomal recessive condition is inherited if:Select one:a. both parents are carriersb. the mother passes on the gene and the baby is a boyc. both parents pass on the gene for the conditiond. the mother is a carrier for the condition
Question
An autosomal recessive condition is inherited if:Select one:a. both parents are carriersb. the mother passes on the gene and the baby is a boyc. both parents pass on the gene for the conditiond. the mother is a carrier for the condition
Solution
An autosomal recessive condition is inherited if both parents pass on the gene for the condition. This means option c is the correct answer.
Here's why:
Autosomal recessive inheritance means two copies of an abnormal gene must be present in order for the disease or trait to develop. A person has to inherit one copy of the gene mutation from each parent. If both parents are carriers, there is a 25% chance that their child will inherit the mutated gene from both and therefore have the disease.
So, even though option a (both parents are carriers) can be a condition for the disease to occur, it doesn't guarantee the child will have the disease. They could also be a carrier or not inherit the gene at all. Therefore, the most accurate answer is option c (both parents pass on the gene for the condition).
Similar Questions
Question textAn autosomal recessive condition is inherited if:Select one:a. both parents are carriersb. the mother passes on the gene and the baby is a boyc. both parents pass on the gene for the conditiond. the mother is a carrier for the condition
Question textIf a disorder is passed on through recessive inheritance, the person will have a gene pair in which one copy is faulty and the other is working properly and so will be a carrier of the faulty gene who is unaffected by the disorder.
To inherit an autosomal dominant disorder a person could receive the allele leading to the disease fromMultiple Choicethe father only, not the mother.the mother only, not the father.the mother or the father.the parent who does not exhibit the disease.All answers are correct.
If a child is born with a genetic disorder when neither of his biological parents have that disorder, the trait is likely to be caused by: a recessive allele on an autosome a gene on the X chromosome a dominant allele on the autosome a gene on the Y chromosome
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