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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?

#SCPH01 Biochemistry
  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.
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TLS Online TPP Program

#Question id: 9157

#SCPH06 I Botany

At 15-30°N, air masses formed over the Pacific Ocean are moved by prevailing westerlies, where they encounter extensive north-south mountain ranges. Which statement best describes the outcome of this encounter between a landform and an air mass?
TLS Online TPP Program

#Question id: 3027

#I Life Science/ Life Sciences Group – I-V

Which of the following contains a copy of the chromosome, along with a small amount of dehydrated cytoplasm, within a tough wall?
TLS Online TPP Program

#Question id: 16030

#SCPH05 I Biotechnology

Sometimes cell lines can be cultured for such a long time that they apparently develop the potential to be subcultured indefinitely in vitro. Such cells lines are called
TLS Online TPP Program

#Question id: 7296

#SCPH06 I Botany

some of the following statements regarding to this experiment are given below. Which of the following statements is incorrect?
TLS Online TPP Program

#Question id: 14823

#SCPH05 I Biotechnology

Some bacteria, such as Rhizobium and Corynebacterium, can attain many shapes not just one, called as