Biology

Human Genetics and Disorders

882 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

Which genetic testing method is used to analyze variations in the entire genome?

  1. Karyotyping

  2. Sanger Sequencing

  3. Genome-Wide Association Study (GWAS)

  4. DNA Microarray Analysis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Genome-Wide Association Studies (GWAS) analyze genetic variations across the entire genome to identify genetic markers associated with specific traits or diseases.

Multiple choice

What is the term for a genetic disorder caused by a mutation in multiple genes?

  1. Polygenic Disorder

  2. Multifactorial Disorder

  3. Mitochondrial Disorder

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

Polygenic disorders are genetic disorders caused by variations in multiple genes, each contributing to the overall risk of developing the disorder.

Multiple choice

Which genetic disorder is characterized by the inability to digest lactose due to a deficiency of the enzyme lactase?

  1. Lactose Intolerance

  2. Celiac Disease

  3. Phenylketonuria (PKU)

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

Lactose Intolerance is a genetic disorder caused by a deficiency of the enzyme lactase, resulting in the inability to digest lactose, a sugar found in milk and dairy products.

Multiple choice

Which genetic disorder is characterized by the accumulation of toxic substances in the body due to a deficiency of the enzyme phenylalanine hydroxylase?

  1. Lactose Intolerance

  2. Celiac Disease

  3. Phenylketonuria (PKU)

  4. Cystic Fibrosis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Phenylketonuria (PKU) is a genetic disorder caused by a deficiency of the enzyme phenylalanine hydroxylase, leading to the accumulation of toxic substances in the body if untreated.

Multiple choice

Which genetic disorder is characterized by the presence of thick, sticky mucus in the lungs and other organs due to a mutation in the CFTR gene?

  1. Lactose Intolerance

  2. Celiac Disease

  3. Phenylketonuria (PKU)

  4. Cystic Fibrosis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cystic Fibrosis is a genetic disorder caused by a mutation in the CFTR gene, leading to the production of thick, sticky mucus in the lungs and other organs, causing respiratory and digestive problems.

Multiple choice

What is the name of the groundbreaking genetic test that can assess a man's risk of developing prostate cancer based on inherited genetic variations?

  1. Prostate-Specific Antigen (PSA) Test

  2. Digital Rectal Exam (DRE)

  3. Prostate Magnetic Resonance Imaging (MRI)

  4. Prolaris Genomic Test
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Prolaris Genomic Test is a cutting-edge genetic test that analyzes a man's tumor tissue to determine the aggressiveness of his prostate cancer and predict its likelihood of spreading, aiding in personalized treatment decisions.

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

What is the most common type of primary immunodeficiency disorder?

  1. Severe combined immunodeficiency (SCID)

  2. Common variable immunodeficiency (CVID)

  3. X-linked agammaglobulinemia (XLA)

  4. Wiskott-Aldrich syndrome (WAS)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Common variable immunodeficiency (CVID) is the most prevalent primary immunodeficiency disorder, characterized by a deficiency in the production of antibodies, leading to recurrent infections.