Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 50408
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?

#SCPH28 | Zoology
  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: 19024

#SCPH01 Biochemistry

Computational tools that are used for the alignment of multiple sequences-
TLS Online TPP Program

#Question id: 3867

#SCPH28 | Zoology

RNA polymerase from E. coli (core enzyme alone) has all of the following properties except that it:
TLS Online TPP Program

#Question id: 1090

#SCPH28 | Zoology

Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of ions on opposite sides of the membrane?
TLS Online TPP Program

#Question id: 3882

#SCPH05 I Biotechnology

The reverse transcriptase of an animal RNA virus catalyzes:
TLS Online TPP Program

#Question id: 12703

#SCPH12 I Genetics

In the plants, due to mutation in the mitochondrial genome causing cytoplasmic male sterility can be influenced by the nuclear gene (Rf),  which is dominant over the cytoplasmic mitochondrial genome. If a male sterile plant  is pollinated by the fertile male plant with homozygous (Rf)condition, the progeny obtained in F1 will have