TLS Online TPP Program

#Question id: 1581


An otherwise healthy student in your class is infected with EBV, the virus that causes infectious mononucleosis. The same student had already been infected when she was a child, and she had merely experienced a mild sore throat and swollen lymph nodes in her neck. This time, though infected, she does not get sick. 

Her immune systemʹs recognition of this infection will involve which of the following?

#XL - S Microbiology
  1. helper T cells

  2. memory B cells

  3. plasma cells

  4. cytotoxic T cells

More Questions
TLS Online TPP Program

#Question id: 3058

#XL - S Microbiology

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

#XL - S Microbiology

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

#XL - T Zoology

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

#XL - T Zoology

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?

TLS Online TPP Program

#Question id: 3251

#XL - T Zoology

Looking at 3 allele per locus and following Hardy Weinberg equilibrium what will be the expected heterozygosity if q1=0.5, q2=0.3, q3=0.2

TLS Online TPP Program

#Question id: 3252

#XL - T Zoology

 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).