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TLS Online TPP Program

#Question id: 28821

In the presence of ATP and Ca2+, the myosin head releases from the actin filament and extending from_____

#Unit 2. Cellular Organization
  1. the thin filaments walk toward the (+) ends of the thick filaments
  2. the thin filaments walk toward the (-) ends of the thick filaments
  3. the thick filaments walk toward the (-) ends of the thin filaments.
  4. the thick filaments walk toward the (+) ends of the thin filaments
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TLS Online TPP Program

#Question id: 7578

#General Aptitude

Joseph walked 1 km/hr slower than usual and he could return home in 9/8th of his usual time. His normal walking rate is
TLS Online TPP Program

#Question id: 17807

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are non-albino members of Generation 2?
TLS Online TPP Program

#Question id: 32347

#Unit 1. Molecules and their Interaction Relevant to Biology

Cytosolic normal p53 directly inhibits 
TLS Online TPP Program

#Question id: 11200

#Unit 7. System Physiology – Animal

Action potentials are normally carried in only one direction: from the axon hillock toward the axon terminals. If you experimentally depolarize the middle of the axon to threshold, using an electronic probe, then ________.
TLS Online TPP Program

#Question id: 4725

#Unit 8. Inheritance Biology

Ptosis (droopy eyelid) may be inherited as a dominant human trait. Among 30 people who are heterozygous for the ptosis allele, 10 have ptosis and 20 have normal eyelids. What is the penetrance for ptosis?