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TLS Online TPP Program

#Question id: 12573

Which of the following conditions is the most likely indicator of a population in an extinction vortex? 

#SCPH06 I Botany
  1. The population is geographically divided into smaller populations.
  2. The species is found only in small pockets of its former range
  3. The effective population size of the species falls below 500.
  4. Genetic measurements indicate a continuing loss of genetic variation.
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TLS Online TPP Program

#Question id: 24448

#SCPH06 I Botany

A gamma rhythm (30–80 Hz)
TLS Online TPP Program

#Question id: 4307

#SCPH01 Biochemistry

When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?
TLS Online TPP Program

#Question id: 2966

#I Life Science/ Life Sciences Group – I-V

Scientists isolate cells in various phases of the cell cycle. They isolate a group of cells that have 1 1/2 times more DNA than G1 phase cells. What is the most likely part of the cell cycle from which these cells were isolated?
TLS Online TPP Program

#Question id: 1627

#SCPH01 Biochemistry

Several of the complement components are:
TLS Online TPP Program

#Question id: 7286

#SCPH06 I Botany

Which of the floral whorls is affected in apetala 3/pistillata (ap3/pi) mutants?