Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 12256
TLS Online TPP Program

#Question id: 13097

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.
 
If you take any bacterial gene sequence, before you begin doing any sequence analysis on it, there are six potential open reading frames. Why are there six?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. There are 3 reading frames on each of two strands, because the top strand looked like the mRNA, then the reading frame could start with a CCC, a CCG, or a CGT and If the bottom strand looked like the mRNA, then the reading frame could start with a TGT, a GTT, or a TTC.
  2. There are 6 reading frames on each of two strands because the strand look like the mRNA, then the reading frame could start with a CCC, a CCG, a CGT, a GTA, TAC or a ACG.
  3. There are 3 reading frame only on the top of the strand looked like the mRNA, then the reading frame could start with a CCC, a CCG, or a CGT.
  4. There are 3 reading frames on each of two strands, because the top strand looked like the mRNA, then the reading frame could start with a CCC, a CCG, or a CGT and If the bottom strand looked like the mRNA, then the reading frame could start with a GGG, a GGC, or a GCA.
More Questions
TLS Online TPP Program

#Question id: 14728

#Section 1: Engineering Mathematics

A student appears for tests I, II and III. The student is successful if he passes either in tests I and II or tests I and III. The probabilities of the student passing in tests I, II and III are p, q and 1/2 respectively. If the probability that the student is successful is 1/2. Then
TLS Online TPP Program

#Question id: 14729

#Section 1: Engineering Mathematics

The figure below shows the network connecting cities A, B, C, D, E and F. The arrows indicate permissible directions of travel. If Deepak from city A wants to visit city F, what is the probability he will pass through city C
TLS Online TPP Program

#Question id: 14730

#Section 1: Engineering Mathematics

Mean of 200 observations was found to be 90. However, when the observations were being made, two observations were wrongly taken as 15 and 80 instead of 40 and 87. Then the correct mean is
TLS Online TPP Program

#Question id: 14733

#Section 2: General Biology

Staphylococci are coccus bacteria which usually occur in clusters. What is the benefit of being in cluster
TLS Online TPP Program

#Question id: 14734

#Section 2: General Biology

Among the following which bacteria shows corkscrew movement?
1. Treponema pallidum
2. Leptospira
3. Borrelia burgdorferi
4. Brachyspira pilosicoli
Which among the following combination is correct?
TLS Online TPP Program

#Question id: 14735

#Section 2: General Biology

Large surface are a to volume ratio of bacterial cell give advantage for