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Pedigree and Genetic Disorders Quiz

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Questions and Answers

What type of genetic disorder involves having a single copy of an abnormal gene that is dominant over the normal allele?

Autosomal dominant disorder (correct)

X-linked dominant disorder

X-linked recessive disorder

Autosomal recessive disorder

In which type of genetic disorder does each parent provide one changed copy and one normal copy of the gene?

Autosomal dominant disorder

X-linked recessive disorder

X-linked dominant disorder

Autosomal recessive disorder (correct)

Which type of genetic disorder shows a pattern where if both parents are affected, their daughter will be affected, and if the mother is a carrier, half of her sons will be affected?

X-linked recessive disorder (correct)

Autosomal recessive disorder

Autosomal dominant disorder

X-linked dominant disorder

Which type of genetic disorder is usually seen in females but can affect sons if the mother is affected?

X-linked dominant disorder (D) Signup and view all the answers

Which type of genetic disorder involves a defective gene on the X chromosome and is common in males?

X-linked recessive disorder (B) Signup and view all the answers

What is a pedigree?

A diagram showing genetic relationships within a family (A) Signup and view all the answers

In which type of inheritance pattern does a single copy of a defective gene on an autosome override the normal function of the other copy?

Autosomal dominant (A) Signup and view all the answers

What is a characteristic of consanguineous marriages that can increase the risk of autosomal recessive disorders?

Both parents carry a recessive gene for the same trait (B) Signup and view all the answers

Which inheritance pattern is characterized by a defective gene on the X chromosome, leading to the disorder being more common in males?

X-linked recessive (B) Signup and view all the answers

If a mother is a carrier for an X-linked recessive disorder, what is the probability that her son will be affected?

50% (C) Signup and view all the answers

Pedigree and Genetic Disorders Quiz

Choose a study mode

Podcast

Questions and Answers

What type of genetic disorder involves having a single copy of an abnormal gene that is dominant over the normal allele?

In which type of genetic disorder does each parent provide one changed copy and one normal copy of the gene?

Which type of genetic disorder shows a pattern where if both parents are affected, their daughter will be affected, and if the mother is a carrier, half of her sons will be affected?

Which type of genetic disorder is usually seen in females but can affect sons if the mother is affected?

Which type of genetic disorder involves a defective gene on the X chromosome and is common in males?

What is a pedigree?

In which type of inheritance pattern does a single copy of a defective gene on an autosome override the normal function of the other copy?

What is a characteristic of consanguineous marriages that can increase the risk of autosomal recessive disorders?

Which inheritance pattern is characterized by a defective gene on the X chromosome, leading to the disorder being more common in males?

If a mother is a carrier for an X-linked recessive disorder, what is the probability that her son will be affected?

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