Asked by ddd
Complete the paragraph by selecting the appropriate vocabulary terms based on pedigree below:
The affected individuals in this pedigree ["", ""] . Males and females are ["", ""] affected. This tells us that the trait being studied is ["", "", ""] . The eldest child (in Generation II) of the parents from Generation I is an ["", "", "", ""] , and with an affected parent all of their children must be ["", "", "", "", "", ""] . Individual III-6 represents an ["", "", "", ""] .
1.09 - Unit Test - Pedigree Interpretation.png
All Answers 1
Answered by
GPT-5 mini
AI
I can’t see the pedigree image you referenced. Please upload the image or describe which individuals (by generation/number) are shaded (affected) and which are not. With that I’ll fill the exact blanks.
While you upload, here are clear rules and three example completions (autosomal dominant, autosomal recessive, X‑linked recessive) so you can match the wording to your pedigree:
How to decide:
- If males and females are affected about equally → autosomal. If almost only males → X‑linked.
- If the trait appears in every generation (vertical transmission) → likely dominant. If it skips generations (parents unaffected but children affected) → likely recessive.
- An affected person with an unaffected parent in a dominant pedigree must be heterozygous (assuming full penetrance).
- A child of an affected parent in an autosomal dominant trait has a 50% chance of being affected (if the affected parent is heterozygous).
- “Obligate carrier” applies when an individual must carry a recessive allele because they have affected offspring.
Example A — autosomal dominant (sample filled paragraph)
- The affected individuals in this pedigree are shaded. Males and females are equally affected. This tells us that the trait being studied is autosomal dominant trait. The eldest child (in Generation II) of the parents from Generation I is an affected heterozygous individual, and with an affected parent all of their children must be at risk of inheriting the dominant allele. Individual III‑6 represents an unaffected sibling (or an obligate heterozygote if shown differently).
Example B — autosomal recessive (sample filled paragraph)
- The affected individuals in this pedigree are shaded. Males and females are equally affected. This tells us that the trait being studied is autosomal recessive trait. The eldest child (in Generation II) of the parents from Generation I is an obligate carrier (heterozygote), and with an affected parent all of their children must be carriers or affected depending on the other parent’s genotype. Individual III‑6 represents a carrier (heterozygous) individual if they are phenotypically normal but have affected relatives.
Example C — X‑linked recessive (sample filled paragraph)
- The affected individuals in this pedigree are shaded. Males and females are unequally affected (males primarily). This tells us that the trait being studied is X‑linked recessive trait. The eldest child (in Generation II) of the parents from Generation I is an obligate carrier (if female) or affected (if male), and with an affected father all daughters must be carriers while sons cannot inherit the affected X from their father. Individual III‑6 represents an affected male (if male) or carrier female (if female), depending on the pedigree.
If you upload the actual pedigree or tell me which symbols are shaded (e.g., I‑1 affected, I‑2 unaffected, II‑1 unaffected, II‑2 affected, etc.), I’ll fill the paragraph with the exact vocabulary that matches your figure.
While you upload, here are clear rules and three example completions (autosomal dominant, autosomal recessive, X‑linked recessive) so you can match the wording to your pedigree:
How to decide:
- If males and females are affected about equally → autosomal. If almost only males → X‑linked.
- If the trait appears in every generation (vertical transmission) → likely dominant. If it skips generations (parents unaffected but children affected) → likely recessive.
- An affected person with an unaffected parent in a dominant pedigree must be heterozygous (assuming full penetrance).
- A child of an affected parent in an autosomal dominant trait has a 50% chance of being affected (if the affected parent is heterozygous).
- “Obligate carrier” applies when an individual must carry a recessive allele because they have affected offspring.
Example A — autosomal dominant (sample filled paragraph)
- The affected individuals in this pedigree are shaded. Males and females are equally affected. This tells us that the trait being studied is autosomal dominant trait. The eldest child (in Generation II) of the parents from Generation I is an affected heterozygous individual, and with an affected parent all of their children must be at risk of inheriting the dominant allele. Individual III‑6 represents an unaffected sibling (or an obligate heterozygote if shown differently).
Example B — autosomal recessive (sample filled paragraph)
- The affected individuals in this pedigree are shaded. Males and females are equally affected. This tells us that the trait being studied is autosomal recessive trait. The eldest child (in Generation II) of the parents from Generation I is an obligate carrier (heterozygote), and with an affected parent all of their children must be carriers or affected depending on the other parent’s genotype. Individual III‑6 represents a carrier (heterozygous) individual if they are phenotypically normal but have affected relatives.
Example C — X‑linked recessive (sample filled paragraph)
- The affected individuals in this pedigree are shaded. Males and females are unequally affected (males primarily). This tells us that the trait being studied is X‑linked recessive trait. The eldest child (in Generation II) of the parents from Generation I is an obligate carrier (if female) or affected (if male), and with an affected father all daughters must be carriers while sons cannot inherit the affected X from their father. Individual III‑6 represents an affected male (if male) or carrier female (if female), depending on the pedigree.
If you upload the actual pedigree or tell me which symbols are shaded (e.g., I‑1 affected, I‑2 unaffected, II‑1 unaffected, II‑2 affected, etc.), I’ll fill the paragraph with the exact vocabulary that matches your figure.
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