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TLS Online TPP Program

#Question id: 10708

Which of the following statements is a likely explanation for why invasive species take over communities into which they have been introduced?

#Unit 10. Ecological Principles
  1. Invasive species are less efficient than native species in competing for the limited resources of the environment.
  2. Invasive species are not held in check by the predators and agents of disease that have always been in place for native species.
  3. Invasive species have a higher reproductive potential than native species.
  4. Invasive species come from geographically isolated regions, so when they are introduced to regions where there is more competition, they thrive
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TLS Online TPP Program

#Question id: 13000

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the correct statement regarding the structure
TLS Online TPP Program

#Question id: 13001

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is incorrect 
a) antiparallel β sheets are frequently found and they are quite more stable because of more no. hydrogen bond presence and linear H bonding pattern.
b) antiparallel β sheets are frequently found and they are quite more stable because of more no. hydrogen bond presence and having distorted H bonding pattern.
c) parallel β sheets are relatively less stable and mostly found in core of protein.
d) parallel β sheets are relatively more stable and mostly found in core of protein.
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;
Column 1Column 2
I) Polymerasesa) In the cytoplasm
II) Ribosomal proteinsb) Inside the plasma membrane.
III) DNA ligasec) In the mitochondrial matrix
IV) protein that allows ions to pass in and out of the celld) In the nucleus of cells
V) Activator proteine) 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: 13003

#Unit 8. Inheritance Biology

If 200 meiocytes with AaBb and   80 meiocytes  undergoes to single crossing over between  gene A and B. What will be the chance of crossing over and what is the recombination frequency of the gametes?
TLS Online TPP Program

#Question id: 13004

#Unit 8. Inheritance Biology

If the 120 meiocytes undergoes to the single crossing over then what will be the correct prediction about this ;
TLS Online TPP Program

#Question id: 13005

#Unit 8. Inheritance Biology

50 meiocytes with the genotype AaBb has 5% recombinational frequency in their gametes A and B, then how many meiocytes undergoes to the single crossing over ?