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TLS Online TPP Program

#Question id: 9230

Brown-headed cowbirds utilize fragmented forests effectively by ________.

#Unit 9. Diversity of Life Forms
  1. feeding on the fruits of shrubs that tend to grow at the forest/open-field interface
  2. parasitizing the nests of forest birds and feeding on open-field insects
  3. consuming the eggs of other species as well as insects and seeds in open fields
  4. outcompeting other songbird species for access to nesting holes in old-growth trees 
More Questions
TLS Online TPP Program

#Question id: 12491

#Unit 8. Inheritance Biology

Phenylketonuria shows autosomal recessive inheritance with an incidence of 1 in 10000. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct?
TLS Online TPP Program

#Question id: 12492

#Unit 8. Inheritance Biology

A young man with phenylketonuria, who was successfully treated following diagnosis on newborn screening, is planning to start a family with his healthy, unaffected, and unrelated partner, who has no family history of phenylketonuria . Phenylketonuria shows autosomal recessive inheritance with an incidence of 1 in 10 000. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct?
TLS Online TPP Program

#Question id: 12493

#Unit 8. Inheritance Biology

Cystic fibrosis shows autosomal recessive inheritance with an incidence of 1 in 2500. The unaffected brother of an affected girl is referred for genetic counseling. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct?
TLS Online TPP Program

#Question id: 12494

#Unit 8. Inheritance Biology

Hunter syndrome is a rare form of mucopolysacchararidosis that differs from all other forms in that it shows X-linked recessive inheritance. A woman with two affected brothers is referred for genetic counselling. Which of the following is correct?
TLS Online TPP Program

#Question id: 12495

#Unit 8. Inheritance Biology

Haemophilia A is a severe coagulation disorder that shows X-linked recessive inheritance. Red-green colour blindness also shows X-linked recessive inheritance. A man with both haemophilia A and colour blindness is referred for genetic counseling. Assume that his partner is not a carrier of either of these conditions. Which of the following is correct?
TLS Online TPP Program

#Question id: 12496

#Unit 8. Inheritance Biology

A woman who has two brothers and a maternal uncle (her mother's brother) with non-specific X-linked mental retardation is referred for genetic counselling. There are no diagnostic tests available to help determine whether or not she is a carrier. Which of the following is correct?