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TLS Online TPP Program

#Question id: 8692

Which of the following statements is accurate with regard to a phylogeny, as represented by a phylogenetic tree?

#SCPH06 I Botany
  1. Descendant groups (branches) from the same node likely share many derived characters.
  2. A monophyletic group can be properly based on convergent features.
  3. The ancestral group often has all the derived characters of the descendant species.
  4. Shared ancestral characters are excellent traits to use in developing a phylogeny.
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TLS Online TPP Program

#Question id: 4138

#SCPH01 Biochemistry

In bacteria the elongation stage of protein synthesis does not involve:
TLS Online TPP Program

#Question id: 7022

#SCPH01 Biochemistry

Two teratogens known to cause cyclopia in vertebrates are jervine and cyclopamine. Both targets hedgehog pathway. Both teratogens inhibits:
TLS Online TPP Program

#Question id: 4135

#SCPH28 | Zoology

In the “activation” of an amino acid for protein synthesis:
TLS Online TPP Program

#Question id: 9192

#SCPH28 | Zoology

The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to
TLS Online TPP Program

#Question id: 10688

#SCPH06 I Botany

For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are

KA = 1000           KB = 1200    α of B= 1     β of A= .5       rB= .5         r A= .3                

AN= 500                  BN= 200

According to the Lotka-Volterra model, what is growth rate of species A?