Phosphate is often the limiting plant nutrient in soil, and perhaps the evolutionary pressure to conserve phosphate for more critical roles favored plants that made phosphate-free lipids.

TLS Online TPP Program

#Id: 9211

#Section 3: Genetics, Cellular and Molecular Biology

THE MAGNITUDE OF GENETIC DRIFT

n  = population size

pq=allelic frequency

sp2=variance in allelic frequency among the populations

TLS Online TPP Program

#Id: 8952

#Section 3: Genetics, Cellular and Molecular Biology

One is unequal crossing over, in which recombination happens between different positions on chromosomes that are misaligned during meiosis. 

Another is replication slippage, in which the DNA polymerase loses its place and copies a segment of chromosome twice.

TLS Online TPP Program

#Id: 8038

#Section 2: General Biology

His ionisation series

1------pK1-----pKr--------pKr------14

TLS Online TPP Program

#Id: 8409

#Section 3: Genetics, Cellular and Molecular Biology

Troponin, a complex of three polypeptides, 

TN-T (tropomyosin-binding)

TN-I  (inhibitory)

TN-C (Ca2+-binding)

TLS Online TPP Program

#Id: 8961

#Section 3: Genetics, Cellular and Molecular Biology

No matter how it is born, a new gene starts its life as a single copy in the population.

As with any new mutation, by far the most likely outcome is that it will be lost by random drift or selection over the next few generations