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TLS Online TPP Program

#Question id: 9588

The light-absorbing antenna systems are organised in different manner, which of the following statements about antenna would be Incorrect?

#Section 2: General Biology
  1. The antenna systems of different classes of photosynthetic organisms are almost same , in contrast to the reaction centre, which appear to be similar in even distantly related organisms
  2. The variety of antenna complexes reflects evolutionary adaptation to the diverse environments in which different organisms live, as well as the need in some organisms to balance energy input to the two photosystems
  3. The size of the antenna system varies considerably in different organisms, ranging from a low of 20 to 30 bacteriochlorophylls per reaction centre to generally 200 to 300 chlorophylls per reaction centre
  4. The molecular structures of antenna pigments are associated in some way with the photosynthetic membrane, In almost all cases, the antenna pigments are associated with proteins to form pigment–protein complexes
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TLS Online TPP Program

#Question id: 3776

#Section 3: Genetics, Cellular and Molecular Biology

Telomere shortening puts a limit on the number of times a cell can divide. Research has shown that telomerase can extend the life span of cultured human cells. How might adding telomerase affect cellular aging?
TLS Online TPP Program

#Question id: 3758

#Section 3: Genetics, Cellular and Molecular Biology

 At a specific area of a chromosome, the sequence of nucleotides below is present where the chain opens to form a replication fork:

3' C C T A G G C T G C A A T C C 5'

An RNA primer is formed starting at the underlined T (T) of the template. Which of the following represents the primer sequence?
TLS Online TPP Program

#Question id: 27190

#Section 5: Bioprocess Engineering and Process Biotechnology

A substrate is consumed in a zero order reaction such that the concentration falls from 40 g/l to 20 g/l in 4 h. How long will it take the substrate to fall from 20 g/l to 2 g/l:
TLS Online TPP Program

#Question id: 17286

#Section 1: Engineering Mathematics

Consider the following grouped frequency distribution :
 
What is the median of the distribution ? 
TLS Online TPP Program

#Question id: 21163

#Section 5: Bioprocess Engineering and Process Biotechnology

The half life period of a first order reaction is given by (where, K = rate constant. )