Practice Questions

TLS Online TPP Program

#Question id: 3252

The unaffected brother of a cystic fibrosis affected girl is referred for genetic counseling. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct? (Cystic fibrosis is an autosomes recessive inheritance with an incidence of 1 in 2500).

#XL - T Zoology

The probability that the brother is a carrier is 1/2)
If the brother has a child with a healthy unrelated partner the probability that the child will be affected is 1 in 150.
If the brother has a child with his first cousin the probability that the child will be affected is 1 in 12)
If the affected sister has a child with her first cousin the probability that the child will be affected is 1 in 4)

More Questions

#Question id: 11332

#XL - T Zoology

The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that

A) tropical communities are older.

B) tropical regions generally have more available water and higher levels of solar radiation.

C) higher temperatures cause more rapid speciation.

D) diversity increases as evapotranspiration decreases.

#Question id: 2050

#XL - S Microbiology

Which of the following statements is NOT TRUE?

#Question id: 4755

#XL - R Botany

When two albino snails were crossed, all of the F1 were pigmented. All F1 intercross would results

#Question id: 10996

#XL - T Zoology

A ventricular depolarization wave when traveling 60° in the frontal plane will cause a large positive deflection in which of the following leads?

#Question id: 27252

#XL - T Zoology