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TLS Online TPP Program

#Question id: 2503

Which of the following is true about intermediate filaments?

#Unit 2. Cellular Organization

  1. They are named based on their location in cells between actin microfilaments and microtubules.

  2. All cells express the same class II cytoplasmic intermediate filament proteins.

  3. Staggered, antiparallel tetramers give intermediate filaments strength.

  4. Acidic and basic keratins provide dynamic paths on which organelles may travel.

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TLS Online TPP Program

#Question id: 12509

#Unit 8. Inheritance Biology

In this pedigree I 1 and II 2 have Becker muscular dystrophy which shows X-linked recessive inheritance. III 2 has oculocutaneous albinism which shows autosomal recessive inheritance with an incidence in the general population of 1 in 10 000. The disease status for both Becker muscular dystrophy and oculocutaneous albinism is unknown for IV 1 and IV 2.
What is the probability that IV 1 is a carrier of oculocutaneous albinism? 
TLS Online TPP Program

#Question id: 5191

#General Aptitude

Find the sum of all even three digit numbers which are divisible by 3.
TLS Online TPP Program

#Question id: 14507

#Unit 13. Methods in Biology

For a biased die the probabilities for different faces to turn up are given below.
The die is tossed and you are told that either face 1 or face 2 has turned up. The probability that it is face 1 is
TLS Online TPP Program

#Question id: 1672

#Unit 4. Cell Communication and Cell Signaling

Using only random VDJ recombination, from 40 V, 23 D, and 6 J gene segments, what are the number of possible variable regions of an antigen receptor molecule?
TLS Online TPP Program

#Question id: 28314

#Unit 5. Developmental Biology

Mammalian egg have pathways for accepting both types of capacitated sperm acrosome-intact sperm as well as acrosome-reacted sperm pathway ultimately lead to the activation of acrosomal reaction that proceed by acrosomal protein. these important acrosomal proteins are____