Question

Imagine that a researcher is constructing a pedigree for a trait he expects to show recessive inheritance in humans. what are the likely characteristics of this trait?

Answer 1

According to a source, the answers are trait may not occur within every generation of a family, the parents of children who have this trait may not be themselves affected. 


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Answer 2

Answer:

• Parents that are not affected (but heterozygous) for the inheritance can produce affected kids.
• Recessive inheritance are not expressed in every generation in a pedigree.
• Autosomal recessive inheritance have equal chance of being expressed in both male and female in a pedigree.

Explanation:

Recessive inheritance or traits are those that can be phenotypically expressed only if two copies of the recessive alleles are present in an organism. The characteristics of recessive inheritance include:

• Parents that are not affected (but heterozygous) for the inheritance can produce affected kids.
• Recessive inheritance are not expressed in every generation in a pedigree.
• Autosomal recessive inheritance have equal chance of being expressed in both male and female in a pedigree.