TLS Online TPP Program

#Question id: 9611


If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

#Unit 9. Diversity of Life Forms
  1. homology.
  2. homoplasy.
  3. common ancestry.
  4. retro-evolution by humans.
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TLS Online TPP Program

#Question id: 5801

#Unit 8. Inheritance Biology

Which of the following point mutations would be most likely to affect protein function?

TLS Online TPP Program

#Question id: 13002

#Unit 3. Fundamental Processes

Where in a eukaryotic cell do you think you would find each of the following proteins residing when it is actively performing its function. Be as specific as you can in terms of subcellular location.
Match the following with the correct subcellular location;

 

I) Polymerases

 

 

a) In the cytoplasm

 

II) Ribosomal proteins

 

 

b) Inside the plasma membrane.

 

III) DNA ligase

 

 

c) In the mitochondrial matrix

 

IV) protein that allows ions to pass in and out of the cell

 

 

d) In the nucleus of cells

 

V) Activator protein

 

 

e) Inside the nuclear membrane

 

VI) an enzyme in the Krebs/TCA cycle

 

 

 

VII) a protein that forms a channel through which mRNAs can be exported into the cytoplasm

 

 

 

TLS Online TPP Program

#Question id: 4816

#Unit 8. Inheritance Biology

A wild-type fruit fly heterozygous for gray body color and normal wings was mated with a black fly with vestigial wings to produced 1000 offspring. Recombination frequency between these genes for body color and wing type is 20 %. What number of offspring that is gray body colour and normal wing?

TLS Online TPP Program

#Question id: 29520

#Unit 6. System Physiology – Plant

Which of the following defence system is more costly to the plants

TLS Online TPP Program

#Question id: 13156

#Unit 2. Cellular Organization

Tay sach;s disease are caused when which enzyme is mutated or non-functional?