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TLS Online TPP Program

#Question id: 9575

The warm counter current known as El niño moves southward along the coast of peru each year around christmastime. When this counter current flows strongly, it displaces the cold peru current offshore and results in:

#Unit 10. Ecological Principles
  1. The collapse of the food supply for millions of seabirds
  2. Unusually high productivity of the regional fishery
  3. Increased upwelling of nutrient-rich waters
  4. Colder than normal ocean surface temperatures
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TLS Online TPP Program

#Question id: 13104

#Unit 13. Methods in Biology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction and load each one into a separate well of an agarose gel, and then run the gel.
 

 
Why is it that some people show two bands?
TLS Online TPP Program

#Question id: 34116

#Unit 2. Cellular Organization

A. The positive charge on lysine is neutralized upon acetylation
B. Methylated lysine and arginine are neutral.
C. Lysine can be mono-, di-, or triacetylated
D. Arginine can be mono or diacetylated. 
E. Both Lysine and Arg can be acetylated

Choose true and false
TLS Online TPP Program

#Question id: 2124

#Unit 2. Cellular Organization

An integral membrane protein can be extracted with:
TLS Online TPP Program

#Question id: 968

#Unit 1. Molecules and their Interaction Relevant to Biology

In the urea cycle which molecule is transported from the mitochondrial matrix to the cytosol as ornithine is transported in the opposite direction?
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.