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TLS Online TPP Program

#Question id: 2015

Some viruses can undergo latency, the ability to remain inactive for some period of time. Which of the following is an example?

#Unit 4. Cell Communication and Cell Signaling

  1. influenza, a particular strain of which returns every 10-20 years

  2. herpes simplex viruses (oral or genital) whose reproduction is triggered by physiological or emotional stress in the host

  3. Kaposiʹs sarcoma, which causes a skin cancer in people with AIDS, but rarely in those not infected by HIV

  4. the virus that causes a form of the common cold, which recurs in patients many times in their lives

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TLS Online TPP Program

#Question id: 3056

#Unit 2. Cellular Organization

Ten bacteria were inoculated into a rich medium. If at the end of ten hours the total number of cells is 10^4, then the number of elapsed generations and the generation time respectively is
TLS Online TPP Program

#Question id: 3057

#Unit 2. Cellular Organization

Mean generation time of bacteria is 20 min. 6 hours of incubation, the bacterial population increases from 10^3 cells to
TLS Online TPP Program

#Question id: 3058

#Unit 2. Cellular Organization

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample
TLS Online TPP Program

#Question id: 3060

#Unit 2. Cellular Organization

A bacteria having doubling time of 1 minute, fills a cylindrical vessel completely in 3 hours. How much time will it take to fill half of the vessel?
TLS Online TPP Program

#Question id: 3216

#Unit 11. Evolution and Behavior

The frequency of galactosemia is approximately 1 in 40,000 live births. The frequency of the carrier state can be calculated as
TLS Online TPP Program

#Question id: 3250

#Unit 11. Evolution and Behavior

Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1, A1A2 and A2A2 genotype is 0.01, 0.18 and 0.81) Which of the following statement is correct?