Genetic Disorders
Biology ⇒ Genetics and Heredity
Genetic Disorders starts at 9 and continues till grade 12.
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A child is born with cystic fibrosis. Both parents are healthy. What is the genotype of the parents?
A couple has a child with Tay-Sachs disease, an autosomal recessive disorder. What is the probability that their next child will also have the disease?
A karyotype shows 47 chromosomes, including two X chromosomes and one Y chromosome. What is the likely diagnosis?
A newborn is diagnosed with phenylketonuria (PKU). What dietary change is recommended to prevent symptoms?
A child is born with cystic fibrosis. Both parents are healthy. What is the genotype of the parents?
A couple has a child with Tay-Sachs disease, an autosomal recessive disorder. What is the probability that their next child will also have the disease?
A karyotype shows 47 chromosomes, including two X chromosomes and one Y chromosome. What is the likely diagnosis?
A newborn is diagnosed with phenylketonuria (PKU). What dietary change is recommended to prevent symptoms?
Which chromosomal abnormality leads to Turner syndrome?
(1) Trisomy 21
(2) Monosomy X
(3) Trisomy 18
(4) XXY
Which of the following disorders is caused by a trinucleotide repeat expansion?
(1) Sickle cell anemia
(2) Huntington’s disease
(3) Cystic fibrosis
(4) Down syndrome
Which of the following genetic disorders is sex-linked?
(1) Sickle cell anemia
(2) Hemophilia
(3) Cystic fibrosis
(4) Down syndrome
Which of the following is a common method for diagnosing genetic disorders before birth?
(1) Blood pressure measurement
(2) Amniocentesis
(3) X-ray
(4) Electrocardiogram
Cystic fibrosis is caused by a mutation in the gene that codes for the _______ protein.
Fill in the blank: Huntington’s disease is caused by a _______ mutation in the HTT gene.
Fill in the blank: The genetic disorder _______ is caused by a deletion on chromosome 15 and leads to obesity and intellectual disability.
Fill in the blank: The genetic disorder _______ is caused by a mutation in the FBN1 gene and affects connective tissue.
True or False: All chromosomal disorders are inherited from parents.
True or False: All genetic disorders are inherited from parents.
True or False: All individuals with the same genetic disorder will have identical symptoms.
True or False: Chromosomal nondisjunction during meiosis can result in genetic disorders.
