Genetics and Inheritance Quiz

What are platelets?

• Fragments of cells that help in digestion

• Fragments of cells that help in excretion

• Fragments of cells that help stop bleeding

• Fragments of cells that help in respiration

What is the disorder that can affect platelets and the ability of blood to clot?

• Anemia

• Leukemia

• Hemophilia

• Hemochromatosis

How many chromosomes are there in a human karyotype?

• 50

• 20

• 46

• 23

What are the sex chromosomes commonly called in humans?

• P and Q chromosomes

• M and N chromosomes

• X and Y chromosomes

• A and B chromosomes

Which chromosome is larger and contains more genes - X or Y?

• X chromosome

• Y chromosome

• Both have the same size and number of genes

• Neither X nor Y chromosome contain genes

What is the genotype of a female carrier of hemophilia?

• XHXH

• XHY

• XHXh

• XhXh

In a male individual, which genotype would result in hemophilia?

• XHY

• XhXh

• XHXh

• XHXH

What is the probability of a child having hemophilia if the parents are carriers of the disorder?

• 100%

• 75%

• 25%

• 50%

Which statement is true about sex-linked dominant traits?

• They require two dominant alleles to show the trait

• They are more common in males

• They are not found on the sex chromosomes

• They are represented by a lowercase letter

What is the cause of preeclampsia?

• It is a sex-linked recessive disorder

• It is caused by a single gene

• It is not well understood and can involve multiple genes and external factors

• It is caused by an extra sex chromosome