Genetic Disorders MCQs with Answers

adminApril 3, 2024Last Updated: October 14, 2024

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Welcome to the Genetic Disorders MCQs with Answers. In this post, we have shared Genetic Disorders Online Test for different competitive exams. Find practice Genetic Disorders Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Genetic Disorders.

Generally, genetic disorders are conditions that arise through alterations in DNA within the body; that is, such alterations affect how genes function, thus leading to several health issues. Genetic disorders can be hereditarily acquired or formed spontaneously resulting from factors of mutation. These could be categorized under single-gene disorders, chromosomal disorders, and multifactorial disorders.

Single-gene disorders include disorders related to a single gene. Such disorders include among others cystic fibrosis, sickle cell anemia, and Huntington’s disease. It manifests depending on the type of gene involved, either as an autosomal dominant or autosomal recessive. In this case, cystic fibrosis is manifested as an autosomal recessive disorder because the person has inherited two defective copies of the gene.

A chromosomal disorder is a condition where there is an imbalance or irregular structure of chromosomes. Down syndrome is one such chromosomal disorder where there is an extra copy of chromosome 21. Generally, it causes developmental and intellectual disabilities.

Multifactorial disorders, such as heart disease and diabetes, arise from genetic and environmental factors. As such, multifactorial disorders have more complex etiology due to their interaction with multiplex genes and lifestyle factors.

Advanced diagnosis and treatment of genetic disorders because there has been great improvement in genetic testing and counseling. Techniques including genomic sequencing and carrier screening are being used to identify at-risk people to give them options for early intervention and tailored treatments.

Genetic Disorders Online Quiz

By presenting 3 options to choose from, Genetic Disorders Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Genetic Disorders Questions and Answers and click over the correct answer.

Test Name: Genetic Disorders MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Genetic Disorders

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1 / 40

What is the genetic cause of Rett syndrome?

Trisomy 13

Deletion on chromosome 7

Mutation in the MECP2 gene

2 / 40

What is the primary feature of achondroplasia?

Short stature

Muscle weakness

Vision loss

3 / 40

Which genetic disorder is caused by a mutation in the HBB gene and affects hemoglobin?

Cystic fibrosis

Sickle cell anemia

Tay-Sachs disease

4 / 40

Which disorder is associated with a mutation in the MECP2 gene?

Fragile X syndrome

Marfan syndrome

Rett syndrome

5 / 40

What is the main characteristic of hemophilia?

Blood clotting issues

Vision loss

Connective tissue disorder

6 / 40

Which disorder is associated with a mutation in the FBN1 gene?

Cystic fibrosis

Marfan syndrome

Huntington's disease

7 / 40

Which disorder is associated with a mutation in the NF1 gene?

Neurofibromatosis type 1

Marfan syndrome

Duchenne muscular dystrophy

8 / 40

Which disorder is characterized by progressive brain disorder and typically manifests in mid-adulthood?

Huntington's disease

Duchenne muscular dystrophy

Cystic fibrosis

9 / 40

What is the genetic basis of cystic fibrosis?

Mutation in the CFTR gene

Trisomy 13

Deletion on chromosome 5

10 / 40

What is the main characteristic of achondroplasia?

Vision loss

Short stature

Progressive muscle weakness

11 / 40

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

Turner syndrome

Down syndrome

Klinefelter syndrome

12 / 40

Which disorder is caused by a defect in the dystrophin gene?

Hemophilia

Sickle cell anemia

Duchenne muscular dystrophy

13 / 40

What is the inheritance pattern of neurofibromatosis type 1?

Autosomal dominant

Autosomal recessive

X-linked recessive

14 / 40

What is the main symptom of Niemann-Pick disease?

Lipid accumulation in cells

Copper accumulation

Protein misfolding

15 / 40

Which genetic disorder results from an extra X chromosome in males?

Down syndrome

Klinefelter syndrome

Turner syndrome

16 / 40

Which disorder is associated with a deletion on chromosome 5?

Down syndrome

Edward syndrome

Cri-du-chat syndrome

17 / 40

What is the main symptom of Wilson's disease?

Protein misfolding

Iron overload

Copper accumulation in the body

18 / 40

Which genetic disorder is caused by a mutation in the HEXA gene and leads to neurological deterioration?

Tay-Sachs disease

Down syndrome

Sickle cell anemia

19 / 40

What is the inheritance pattern of Huntington's disease?

Autosomal dominant

Autosomal recessive

X-linked recessive

20 / 40

What is the inheritance pattern of albinism?

Autosomal dominant

Autosomal recessive

X-linked recessive

21 / 40

Which genetic disorder affects the production of melanin?

Albinism

Hemophilia

Cystic fibrosis

22 / 40

What is the main characteristic of Huntington's disease?

Progressive brain disorder

Muscle weakness

Respiratory problems

23 / 40

Which genetic disorder results from the presence of an extra chromosome 13?

Edward syndrome

Patau syndrome

Down syndrome

24 / 40

Which genetic disorder is characterized by progressive muscle weakness?

Duchenne muscular dystrophy

Down syndrome

Sickle cell anemia

25 / 40

Which genetic disorder results in the loss of motor skills and mental abilities in children?

Down syndrome

Tay-Sachs disease

Klinefelter syndrome

26 / 40

Which genetic disorder affects the nervous system and causes developmental delays?

Fragile X syndrome

Down syndrome

Hemophilia

27 / 40

What is the genetic cause of Tay-Sachs disease?

Mutation in the HEXA gene

Deletion on chromosome 5

Trisomy 21

28 / 40

Which disorder is characterized by the presence of three copies of chromosome 18?

Edward syndrome

Turner syndrome

Down syndrome

29 / 40

Which disorder is caused by a mutation in the FGFR3 gene?

Cystic fibrosis

Achondroplasia

Huntington's disease

30 / 40

What is the primary symptom of phenylketonuria (PKU)?

Intellectual disability

Muscle degeneration

Blood clotting issues

31 / 40

What is the genetic cause of sickle cell anemia?

Mutation in the HBB gene

Deletion on chromosome 7

Trisomy 18

32 / 40

Which genetic disorder is associated with tumors along nerves?

Duchenne muscular dystrophy

Neurofibromatosis type 1

Marfan syndrome

33 / 40

What is the genetic basis of Edward syndrome?

Trisomy 21

Monosomy X

Trisomy 18

34 / 40

What is the inheritance pattern of hemophilia?

Autosomal dominant

Autosomal recessive

X-linked recessive

35 / 40

Which genetic disorder results from a single X chromosome in females?

Down syndrome

Turner syndrome

Klinefelter syndrome

36 / 40

Which disorder is caused by a mutation in the CFTR gene?

Marfan syndrome

Huntington's disease

Cystic fibrosis

37 / 40

What is the characteristic feature of Marfan syndrome?

Blood clotting disorder

Connective tissue disorder

Neurological disorder

38 / 40

What is the main symptom of galactosemia?

Inability to metabolize iron

Inability to metabolize copper

Inability to metabolize galactose

39 / 40

What is the main characteristic of Prader-Willi syndrome?

Progressive muscle weakness

Insatiable appetite

Vision loss

40 / 40

What is the inheritance pattern of cystic fibrosis?

Autosomal recessive

X-linked recessive

Autosomal dominant

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adminApril 3, 2024Last Updated: October 14, 2024

0 33 2 minutes read