TLS Online TPP Program

#Question id: 15560


Nearly all of the genetic improvements to industrially important antibiotic-producing strains have been achieved by the use of 

#Unit 12. Applied Biology
  1. Classical mutagenesis and selection
  2. Gene silencing
  3. Auxotrophs
  4. All
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TLS Online TPP Program

#Question id: 5706

#Unit 8. Inheritance Biology

Species A has 2n = 16 chromosomes and species B has 2n = 14. How many chromosomes would be found in an allotriploid of these two species?

TLS Online TPP Program

#Question id: 4119

#Unit 3. Fundamental Processes

Many eukaryotic genes contain a large number of exons. Correct splicing of such genes requires that neighboring exons be ligated to one another; if they are not, exons will be left out. One early proposal suggested that the splicing machinery bound to a splice site at one end of an intron and scanned through the intron to find the splice site at the other end. Such a scanning mechanism would guarantee that an exon was never skipped. This hypothesis was tested with one minigene with a duplicated 5ʹ splice site. Find diagram of the products you expect from minigene if the splicing machinery binds to a 5ʹ splice site and scans toward a 3ʹ splice site.

TLS Online TPP Program

#Question id: 676

#Unit 1. Molecules and their Interaction Relevant to Biology

What would you expect about the formation of an α-helix for a segment of a protein chain that contains lysine approximately every fourth residue with all other residues being mostly hydrophobic?

TLS Online TPP Program

#Question id: 23985

#Unit 1. Molecules and their Interaction Relevant to Biology

The teacher has been glorified by the phrase 'Friend, Philosopher and Guide' because

TLS Online TPP Program

#Question id: 26349

#Unit 2. Cellular Organization

which of the following is compaction associated DNA sequences which are generally located between H1 and H3 binding sites