Biology

Human Genetics and Disorders

844 Questions

Human Genetics and Disorders covers the inheritance patterns, genetic mutations, and molecular basis of hereditary diseases. Topics include sex-linked traits, cancer genetics, and metabolic disorders. This section tests knowledge critical for biology exams and general science papers.

Genetic mutationsInherited disordersCancer geneticsGenetic testingMendelian inheritance

Human Genetics and Disorders Questions

Multiple choice

What is the name of the genetic disorder caused by the presence of an extra copy of chromosome 21?

  1. Down syndrome

  2. Turner syndrome

  3. Klinefelter syndrome

  4. Patau syndrome
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21.

Multiple choice

What is the name of the genetic disorder caused by the absence of one X chromosome in females?

  1. Down syndrome

  2. Turner syndrome

  3. Klinefelter syndrome

  4. Patau syndrome
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Turner syndrome is a genetic disorder caused by the absence of one X chromosome in females.

Multiple choice

What is the name of the genetic disorder caused by the presence of an extra X chromosome in males?

  1. Down syndrome

  2. Turner syndrome

  3. Klinefelter syndrome

  4. Patau syndrome
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Klinefelter syndrome is a genetic disorder caused by the presence of an extra X chromosome in males.

Multiple choice

What is the name of the genetic disorder caused by the deletion of a portion of chromosome 5?

  1. Cri du chat syndrome

  2. Angelman syndrome

  3. Prader-Willi syndrome

  4. Williams syndrome
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cri du chat syndrome is a genetic disorder caused by the deletion of a portion of chromosome 5.

Multiple choice

What is the name of the genetic disorder caused by the deletion of a portion of chromosome 15?

  1. Cri du chat syndrome

  2. Angelman syndrome

  3. Prader-Willi syndrome

  4. Williams syndrome
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Angelman syndrome is a genetic disorder caused by the deletion of a portion of chromosome 15.

Multiple choice

What is the name of the genetic disorder caused by the deletion of a portion of chromosome 7?

  1. Cri du chat syndrome

  2. Angelman syndrome

  3. Prader-Willi syndrome

  4. Williams syndrome
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Prader-Willi syndrome is a genetic disorder caused by the deletion of a portion of chromosome 7.

Multiple choice

What is the name of the genetic disorder caused by the deletion of a portion of chromosome 11?

  1. Cri du chat syndrome

  2. Angelman syndrome

  3. Prader-Willi syndrome

  4. Williams syndrome
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Williams syndrome is a genetic disorder caused by the deletion of a portion of chromosome 11.

Multiple choice

Which of the following is a genetic disorder that affects the lungs and digestive system, causing thick mucus and recurrent infections?

  1. Cystic Fibrosis

  2. Asthma

  3. Bronchitis

  4. Pneumonia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cystic Fibrosis is a genetic disorder that affects the lungs and digestive system, leading to thick mucus, recurrent infections, and difficulty breathing.

Multiple choice

Which genetic disorder is characterized by the presence of an extra copy of chromosome 21?

  1. Down Syndrome

  2. Turner Syndrome

  3. Klinefelter Syndrome

  4. Sickle Cell Anemia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Down Syndrome, also known as Trisomy 21, is a genetic disorder caused by the presence of an extra copy of chromosome 21, leading to developmental and physical abnormalities.

Multiple choice

Which genetic disorder is characterized by the presence of an extra X chromosome in males?

  1. Down Syndrome

  2. Turner Syndrome

  3. Klinefelter Syndrome

  4. Sickle Cell Anemia
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Klinefelter Syndrome is a genetic disorder caused by the presence of an extra X chromosome in males, leading to developmental and physical abnormalities.

Multiple choice

Which genetic disorder is characterized by the presence of sickle-shaped red blood cells?

  1. Down Syndrome

  2. Turner Syndrome

  3. Klinefelter Syndrome

  4. Sickle Cell Anemia
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sickle Cell Anemia is a genetic disorder characterized by the presence of sickle-shaped red blood cells, leading to anemia, pain crises, and various health complications.

Multiple choice

Which genetic disorder is characterized by the presence of an extra Y chromosome in males?

  1. Down Syndrome

  2. Turner Syndrome

  3. Klinefelter Syndrome

  4. XYY Syndrome
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

XYY Syndrome is a genetic disorder characterized by the presence of an extra Y chromosome in males, typically leading to subtle physical and behavioral differences.

Multiple choice

Which type of research involves studying the genetic makeup of individuals to identify genetic variations associated with diseases?

  1. Genome-wide association study (GWAS)

  2. Meta-analysis

  3. Observational study

  4. Clinical trial
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

GWAS is a large-scale study that examines the entire genome to identify genetic variations that are associated with specific diseases or traits.

Multiple choice

What is the name of the first successful gene therapy treatment, and what disease did it target?

  1. ADA deficiency, 1990

  2. Cystic fibrosis, 1993

  3. Sickle cell anemia, 1998

  4. Huntington's disease, 2001
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The first successful gene therapy treatment was performed in 1990 to treat a young girl with ADA deficiency, a rare genetic disorder. The treatment involved inserting a healthy copy of the ADA gene into the girl's T cells.

Multiple choice

Which of the following is an example of a recessive trait in humans?

  1. Cystic Fibrosis

  2. Huntington's Disease

  3. Sickle Cell Anemia

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cystic Fibrosis, Huntington's Disease, and Sickle Cell Anemia are all examples of recessive traits in humans, meaning that both copies of the gene must carry the recessive allele for the trait to be expressed.