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TLS Online TPP Program

#Question id: 1045

Why would it be more difficult to treat diseases in humans caused by members of the Eukarya than diseases caused by the Bacteria?

#Unit 4. Cell Communication and Cell Signaling

  1. Multicellular organisms always have their own immune systems to contend with-so any treatment we develop needs to overcome this built-in protection mechanism in such organisms.

  2. Since bacteria are so much simpler (being single-celled), they are inherently easier to kill off than multi-cellular eukaryotic microbes.

  3. Eukaryotic microbes use many of the same enzymes and systems as humans-so we lose the ability to target certain molecules that might be present ONLY in the cell type we want to eliminate. There's too much overlap when both organisms are eukaryotic.

  4. Eukaryotic microbes (unlike prokaryotes) often secrete compounds that breakdown and eliminate drugs used against them. This makes them much harder to effectively eliminate than bacteria.

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TLS Online TPP Program

#Question id: 2452

#Unit 2. Cellular Organization

Intermediate filaments

a. are typically 6 nm in diameter.                  

b. are essential for cell motility.

c. may be used to diagnose the tissue of origin for many cancers.

d. are composed of globular subunits.                       

e. are formed from tetrameric subunits.
TLS Online TPP Program

#Question id: 32155

#Unit 1. Molecules and their Interaction Relevant to Biology

pKa values for ring nitrogen atoms 1 and 3 in uracil are 
TLS Online TPP Program

#Question id: 5434

#Unit 8. Inheritance Biology

Plant height of wild Solanum nigrum is controlled by polygene. A pure line plant with 60 cm height was cross to pure line plant having 20 cm height .All F1 plant having uniform height 40 cm. F1 plant was allowed to self-fertilization to produced 4/64 proportional of F2 plant having height 20 cm . What is number of polygene governing plant height?
TLS Online TPP Program

#Question id: 2447

#Unit 2. Cellular Organization

In the axonemes, the arrangement of nine outer doublet microtubules, as well as the protofilament number of each outer doublet, is specified by
TLS Online TPP Program

#Question id: 4805

#Unit 8. Inheritance Biology

What is maximum parental frequency for two genes if single cross over within two strands?