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 are the three main types of intellectual disability?

  1. Mild, moderate, and severe

  2. Borderline, mild, and moderate

  3. Mild, severe, and profound

  4. Profound, moderate, and mild
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The three main types of intellectual disability are mild, moderate, and severe.

Multiple choice

What are some of the common mental health conditions that people with intellectual disability may experience?

  1. Depression

  2. Anxiety

  3. Bipolar disorder

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

People with intellectual disability are at an increased risk for a variety of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia.

Multiple choice

Which of the following is an example of a congenital anomaly?

  1. Cleft lip

  2. Down syndrome

  3. Autism

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

A congenital anomaly is a birth defect that occurs during embryonic development. Cleft lip is an example of a congenital anomaly.

Multiple choice

Which of the following is a common characteristic of children with Down syndrome?

  1. Intellectual disability

  2. Physical delays

  3. Speech and language delays

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

Children with Down syndrome typically have intellectual disability, physical delays, and speech and language delays.

Multiple choice

Which of the following is a common characteristic of children with cerebral palsy?

  1. Motor impairments

  2. Speech and language delays

  3. Intellectual disability

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

Children with cerebral palsy typically have motor impairments, speech and language delays, and intellectual disability.

Multiple choice

Which of the following is not a disorder that can affect Theory of Mind?

  1. Autism Spectrum Disorder

  2. Schizophrenia

  3. Alzheimer's Disease

  4. Parkinson's Disease
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Parkinson's Disease is not a disorder that can affect Theory of Mind.

Multiple choice

What is the most common type of cerebral palsy?

  1. Spastic

  2. Athetoid

  3. Ataxic

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

Spastic cerebral palsy is the most common type, accounting for approximately 80% of cases.

Multiple choice

What is the term for the study of the genetic variation that exists within human populations?

  1. Human population genetics

  2. Population genetics

  3. Evolutionary genetics

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

Human population genetics is the study of the genetic variation that exists within human populations. This field of study is concerned with understanding the patterns of genetic variation in human populations, and how these patterns have been shaped by evolutionary forces such as natural selection, genetic drift, and gene flow.

Multiple choice

Which of the following is an example of Positive Assortative Mating?

  1. Tall individuals mating with short individuals

  2. Individuals with similar eye colors mating

  3. Individuals with different skin colors mating

  4. Individuals with contrasting personalities mating
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Positive Assortative Mating occurs when individuals with similar traits mate more frequently than expected by chance. An example would be individuals with similar eye colors mating.

Multiple choice

Which of the following is a genetic condition that causes intellectual disability and physical features such as short stature and a broad forehead?

  1. Down Syndrome

  2. Autism Spectrum Disorder (ASD)

  3. Cerebral Palsy

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

Down Syndrome is a genetic condition that causes intellectual disability and physical features such as short stature, a broad forehead, and an upward slant to the eyes.

Multiple choice

What is a genetic disorder?

  1. A disorder caused by a mutation in a gene

  2. A disorder caused by a mutation in a chromosome

  3. A disorder caused by a mutation in a protein

  4. A disorder caused by a mutation in a DNA sequence
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A genetic disorder is a disorder caused by a mutation in a gene, which can lead to the production of a non-functional or defective protein.

Multiple choice

What is the name of the disorder that results from a deficiency of phenylalanine hydroxylase?

  1. Phenylketonuria

  2. Albinism

  3. Tyrosinemia

  4. Maple syrup urine disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Phenylketonuria is a disorder that results from a deficiency of phenylalanine hydroxylase, an enzyme that converts phenylalanine to tyrosine. This deficiency leads to the accumulation of phenylalanine in the blood and urine.

Multiple choice

What is the name of the disorder that results from a deficiency of branched-chain ketoacid dehydrogenase?

  1. Maple syrup urine disease

  2. Phenylketonuria

  3. Albinism

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

Maple syrup urine disease is a disorder that results from a deficiency of branched-chain ketoacid dehydrogenase, an enzyme that catalyzes the decarboxylation of branched-chain amino acids. This deficiency leads to the accumulation of branched-chain amino acids and their corresponding ketoacids in the blood and urine.

Multiple choice

What is the name of the disorder that results from a deficiency of arginase?

  1. Argininemia

  2. Phenylketonuria

  3. Albinism

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

Argininemia is a disorder that results from a deficiency of arginase, an enzyme that catalyzes the hydrolysis of arginine to form urea and ornithine. This deficiency leads to the accumulation of arginine in the blood and urine.

Multiple choice

What is the most common genetic cause of autism spectrum disorder?

  1. Single-gene mutations

  2. Copy number variations

  3. Trinucleotide repeat expansions

  4. Mitochondrial mutations
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Copy number variations, which are deletions or duplications of large segments of DNA, are the most common genetic cause of autism spectrum disorder.