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TLS Online TPP Program

#Question id: 13138

Life-history characteristics associated with K-selected ordgtanisms include K

#Unit 10. Ecological Principles
  1. Rapid reproductive rates, short generation times, and large body size
  2. Repeated reproduction, few progeny, and large body size
  3. Inhabiting early successional state communities, rapid maturation rates, and numerous large offspring
  4. Inhabiting climax communities, many small offspring, and short life span
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TLS Online TPP Program

#Question id: 23675

#Unit 13. Methods in Biology

After ten cycles of PCR, by approximately what factor will the number of DNA molecules in a sample be increased? Assume maximum efficiency.
TLS Online TPP Program

#Question id: 4946

#Unit 11. Evolution and Behavior

Although absolute distinctions between the ʺmost evolvedʺ protobiont and the first living cell are unclear, biologists generally agree that one major difference is that the typical protobiont could not
TLS Online TPP Program

#Question id: 28898

#Unit 4. Cell Communication and Cell Signaling

Active Wnt signaling leads to___
TLS Online TPP Program

#Question id: 12171

#Unit 8. Inheritance Biology

In the case of recessive lethal, showing lethality with X^w.  If the female grasshopper  with the genotype (X^+ X^w) is cross with the male grasshopper with the genotype (X^+O) , then what will be the probability of showing lethality in male and female?
TLS Online TPP Program

#Question id: 3517

#Unit 8. Inheritance Biology

The following two genotypes are crossed: AaBbCcddX AabbCcDd. What will number of different genotypes among the progeny of this cross?