Berger-Parker index- Dominance indices are weighted toward the abundance of the commonest or dominant species

D_BP= N_max/N

TLS Online TPP Program

#Id: 3203

#Unit 3. Fundamental Processes

Excision systems remove one strand of DNA at the site of damage and then replace it.

TLS Online TPP Program

#Id: 3204

#Unit 3. Fundamental Processes

Recombination-repair systems use recombination to replace the double-stranded region that has been damaged.

TLS Online TPP Program

#Id: 3205

#Unit 3. Fundamental Processes

.All these systems are prone to introducing errors during the repair process. 

TLS Online TPP Program

#Id: 3206

#Unit 3. Fundamental Processes

Photoreactivation is a nonmutagenic repair system that acts specifically on pyrimidine dimers

TLS Online TPP Program

#Id: 3207

#Unit 3. Fundamental Processes

Deamination of cytosine creates a U-G base pair. Uracil is preferentially removed from the mismatched pair

TLS Online TPP Program

#Id: 3215

#Unit 3. Fundamental Processes

Ultraviolet irradiation causes dimer formation between adjacent thymines. The dimer blocks replication and transcription.