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TLS Online TPP Program

#Question id: 9197

What is the biological significance of genetic diversity between populations?

#Unit 9. Diversity of Life Forms
  1. Genes for traits conferring an advantage to local conditions are unlikely.
  2. The population that is most fit would survive by competitive exclusion.
  3. Genetic diversity reduces the probability of extinction.
  4. Diseases and parasites are not spread between separated populations.
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TLS Online TPP Program

#Question id: 3858

#Unit 3. Fundamental Processes

The 5' methyl guanosine caps added during RNA chain elongation performs what function?

1. prevents degradation by nucleases 

2. are recognized by protein factors

3. are used to identify the type of RNA
TLS Online TPP Program

#Question id: 3859

#Unit 3. Fundamental Processes

Polyadenylation is:
TLS Online TPP Program

#Question id: 3860

#Unit 3. Fundamental Processes

Guide RNAs:
TLS Online TPP Program

#Question id: 3861

#Unit 3. Fundamental Processes

_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.
TLS Online TPP Program

#Question id: 3863

#Unit 3. Fundamental Processes

Introns in nuclear pre-mRNAs are excised by:
TLS Online TPP Program

#Question id: 3864

#Unit 3. Fundamental Processes

RNA polymerase: