Genetic Disorders and Diseases Quiz

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What type of genetic disorder is characterized by the presence of an extra chromosome?

X-linked

Autosomal dominant

Chromosomal (correct)

Autosomal recessive

What is the likelihood of a child being affected if both parents are carriers of an autosomal recessive disorder?

50%

75%

100%

25% (correct)

What is the most common type of chromosomal abnormality mentioned in the text?

Autosomal dominant disorder

X-linked disorder

Recessive disorder

Trisomy (correct)

Which type of genetic disorder is typically passed down from generation to generation?

Autosomal dominant Signup and view all the answers

What is the function of DNA in the context of genetic disorders?

DNA contains the genetic information that determines the characteristics of an organism. Signup and view all the answers

What is the probability of a child having an autosomal dominant disorder if both parents have the disease-causing gene?

100% Signup and view all the answers

What is the purpose of the genome in relation to genetic disorders?

The genome is the entire map of genes in an organism. Signup and view all the answers

What is the sex chromosome makeup of a male embryo with a mutated normal Y chromosome?

XY Signup and view all the answers

What is the primary difference between autosomal dominant and autosomal recessive genetic disorders?

Autosomal dominant disorders are caused by a single altered gene, while autosomal recessive disorders require two altered genes. Signup and view all the answers

What is the probability of a heterozygous female (one mutated chromosome) having an affected daughter?

50% Signup and view all the answers

What is the sex chromosome makeup of a homozygous mutant female?

XX Signup and view all the answers

What type of genetic disorder is caused by a deficiency in G6PD (Glucose-6-phosphate dehydrogenase)?

X-linked recessive Signup and view all the answers

What is the process called when an agent affects the development of a fetus or embryo?

Teratogenesis Signup and view all the answers

Which of the following is NOT mentioned as a potential teratogen in the text?

Alcohol Signup and view all the answers

What is the term used in the text for an agent that can cause abnormal development?

Teratogen Signup and view all the answers

Which condition is characterized by an opening on the underside of the penis in males?

Hypospadias Signup and view all the answers

What is indicated by the lack of fusion of the vertebral bones, potentially causing leakage of cerebrospinal fluid?

Spina bifida Signup and view all the answers

Which condition is associated with a small head size and underdeveloped brain?

Microcephaly Signup and view all the answers

What is the main focus of the given text?

Chromosomal abnormalities and genetic disorders Signup and view all the answers

Which of the following statements is true about Klinefelter syndrome?

It is characterized by an extra X chromosome (XXY). Signup and view all the answers

What is the probability of congenital anomalies in Saudi Arabia?

12% Signup and view all the answers

What is the level of prevention mentioned in the text for a condition with the features 'small testes' and 'no sexual characteristics'?

Primary prevention Signup and view all the answers

Based on the information provided, what would be the expected chromosomal makeup of a 13-year-old patient with short stature and lack of secondary sex characteristics?

The information is insufficient to determine the chromosomal makeup. Signup and view all the answers