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Questions and Answers
What is characteristic of X-Linked Dominant inheritance?
What is characteristic of X-Linked Dominant inheritance?
What describes Autosomal Recessive inheritance?
What describes Autosomal Recessive inheritance?
What is true about Mitochondrial inheritance?
What is true about Mitochondrial inheritance?
Characteristic of X-Linked Recessive inheritance includes:
Characteristic of X-Linked Recessive inheritance includes:
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What is Autosomal Dominant inheritance?
What is Autosomal Dominant inheritance?
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Autosomal Recessive is expressed when an individual has ______ copies of the mutant allele.
Autosomal Recessive is expressed when an individual has ______ copies of the mutant allele.
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How is Autosomal Recessive inheritance described?
How is Autosomal Recessive inheritance described?
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What is the inheritance pattern for X-Linked Dominant?
What is the inheritance pattern for X-Linked Dominant?
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What describes X-Linked Recessive inheritance?
What describes X-Linked Recessive inheritance?
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Study Notes
X-Linked Dominant
- Affected males pass the trait to all their daughters.
- No transmission of the trait occurs from father to son.
- Sons inherit the trait only if their mother is affected.
Autosomal Recessive
- Equal likelihood of expression in both males and females.
- Trait can skip generations, appearing in descendants of carrier parents.
Mitochondrial Inheritance
- Trait transmitted exclusively from mother to all her children.
- Affected fathers do not pass the trait to their offspring.
X-Linked Recessive
- No male-to-male transmission of the trait.
- Generally passed from carrier mothers to sons; more prevalent in males.
- Female carriers usually do not express the trait.
Autosomal Dominant
- Expressed in individuals with just one copy of the mutant allele.
- Each offspring has a 50% probability of inheriting the allele from an affected parent.
Autosomal Recessive Details
- Manifestation occurs only in individuals with two copies of the mutant allele.
- In offspring of two carriers:
- 25% chance to be homozygous wild-type (unaffected).
- 25% chance to be homozygous mutant (affected).
- 50% chance to be heterozygous (unaffected carrier).
X-Linked Dominant Details
- Fathers do not transmit the trait to their sons.
- Fathers pass the trait to all of their daughters.
- Mothers have a 50% chance of passing the mutant allele to their children.
- Only one copy of the mutant allele is necessary for expression.
- The gene responsible is located on the X chromosome.
X-Linked Recessive Details
- Fully evident in affected males.
- Rarely affects females unless both X chromosomes carry the mutant allele.
- Transmission occurs from father to daughter and from mother to both sons and daughters.
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Description
Test your knowledge of genetic inheritance patterns with this comprehensive quiz on pedigree charts. Each question focuses on specific inheritance types such as X-Linked Dominant, Autosomal Recessive, and Mitochondrial genetics. Ideal for students studying genetics or preparing for exams.
