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Quiz 5

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NCAT Practice Test - Practice Test - Biology - Variations and Inheritance Quiz

Attempt 10 MCQs on NCAT Practice Test - Practice Test - Biology - Variations and Inheritance | Quiz 5

41. If a carrier female mates with a normal male, what is the probability that a son will be affected?

50% chance for sons to be affected
100% chance for sons to be affected
0% chance for sons
50% chance for daughters to be affected

42. What parental genotypes can produce an affected X-linked recessive female?

Affected father and carrier mother
Affected father and affected mother
Carrier father and carrier mother
Affected mother and normal father

43. Which clotting factor is deficient in hemophilia A?

Factor VIII
Factor IX
Factor VII
Factor X

44. Which royal figure was a famous carrier of hemophilia?

Queen Victoria
Tsar Nicholas II
Prince Leopold
Princess Alice

45. Which type of X-linked inheritance affects females more severely?

X-linked dominant
X-linked recessive
Autosomal dominant
Autosomal recessive

46. What is the most common form of color blindness?

Red-green color blindness
Blue-yellow color blindness
Complete color blindness
Night blindness

47. Which X-linked disorder is caused by dystrophin deficiency?

Duchenne muscular dystrophy
Becker muscular dystrophy
Myotonic dystrophy
Limb-girdle dystrophy

48. What is the most common inherited cause of intellectual disability?

Fragile X syndrome
Klinefelter syndrome
Turner syndrome
Down syndrome

49. Which two royal families besides England were affected by hemophilia?

Spain and Germany
Russia and Spain
Prussia and Austria
England and France

50. What is the main treatment for hemophilia?

Replacement therapy
Gene therapy
Vitamin K
Platelet transfusion

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