HA trimers are responsible for the attachment of the virus to host cells, binding to the sialic acid. 

NA is an enzyme that cleaves N-acetyl neuraminic (sialic) acid

Within the envelope, consists of eight different strands of single- stranded RNA (ssRNA) associated with protein and RNA polymerase. 

TLS Online TPP Program

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#Unit 3. Fundamental Processes

DNA polymerase I has a unique 5 '-3' exonuclease activity that can be combined with DNA synthesis to perform nick translation.

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#Id: 6674

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 8885

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 722

#Unit 3. Fundamental Processes

Each eukaryotic chromosome contains a large number of replicons spaced unevenly throughout the chromosomes.

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#Id: 8833

#Unit 6. System Physiology – Plant

In plants, various nonphotochemical quenching (NPQ) processes act as safety valves for photosynthesis that dissipate excess absorbed light energy harmlessly as heat