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TLS Online TPP Program

#Question id: 12487

Neurofibromatosis type 1 is one of the most common autosomal dominant disorders. A woman with neurofibromatosis type 1 has an unaffected partner. Which of the following is correct regarding their children?

#Part-A Aptitude & General Biotechnology
  1. The probability that each of their children will be affected is 1 in 4.
  2. The probability that their second child will be affected if their first child is affected is 1 in 4.
  3. The probability that their third child will be affected if their first two children are affected is 1 in 2.
  4. If their first child is affected then their second child will not be affected.
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TLS Online TPP Program

#Question id: 3024

#Part-A Aptitude & General Biotechnology

In a rapidly multiplying bacterial population, cell numbers increase
TLS Online TPP Program

#Question id: 5256

#Part-A Aptitude & General Biotechnology

If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?
TLS Online TPP Program

#Question id: 5936

#Part-A Aptitude & General Biotechnology

If 3rd of the month is Friday what day will be on the 4th day after the 21st of the month ?
TLS Online TPP Program

#Question id: 5044

#Part-B Specialized Branches in Biotechnology

The cell might not look different from its nearest or most distant neighbors in the embryo and show no visible signs of differentiation, but its developmental fate has become restricted, the process known as-
TLS Online TPP Program

#Question id: 21731

#Part-B Specialized Branches in Biotechnology

The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half-life of 32 min. 
If the initial concentration of PAN in an air sample is 2.7×1015 molecules/L, what will be the concentration 2.24 h later?