Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 24697
TLS Online TPP Program

#Question id: 12496

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?

#Part-A Aptitude & General Biotechnology
  1. The prior probability that she is a carrier is 1 in 4.
  2. The woman already has two unaffected sons. Therefore, the probability that she is a carrier can be calculated using Bayes' theorem to be 1 in 5.
  3. This means that the probability that her next son will be affected or that her next daughter will be a carrier is 1 in 5.
  4. The probability that the maternal grandmother of this woman is a carrier is 1 in 2.
More Questions
TLS Online TPP Program

#Question id: 3018

#Part-A Aptitude & General Biotechnology

In the growth curve of a bacteria population, the bacteria are rapidly increasing in number in the
TLS Online TPP Program

#Question id: 7508

#Part-A Aptitude & General Biotechnology

A boat running downstream covers a distance of 12 km in 2 h while for covering the same distance upstream it takes 3 h. What is the speed of the boat in still water?
TLS Online TPP Program

#Question id: 11857

#Part-A Aptitude & General Biotechnology

Find the least number which when divided by 5 , 7 , 11 leaves reminders 1 , 2 , 3 respectively.
TLS Online TPP Program

#Question id: 342

#Part-B Specialized Branches in Biotechnology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.
TLS Online TPP Program

#Question id: 14801

#Part-B Specialized Branches in Biotechnology

In a chemostat operating under steady state, a bacterial culture can be grown at dilution rate higher than maximum rate by