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TLS Online TPP Program

#Question id: 9218

What strategy was used to rescue Illinois prairie chickens from a recent extinction vortex?

#Unit 9. Diversity of Life Forms

  1. determining the minimum viable population size by taking into account the effective population size

  2. establishing a nature reserve to protect its habitat nesting grounds
  3. introducing individuals from other populations to increase genetic variation
  4. reducing the population size of its predators and competitors
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TLS Online TPP Program

#Question id: 14971

#Unit 2. Cellular Organization

Bacillus and Clostridium are medically relevant groups of bacteria that characteristically stain 
TLS Online TPP Program

#Question id: 24567

#Unit 8. Inheritance Biology

In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. If  cross the beardless female with heterozygous beard male, what will be the proportion of female beard in F1 generation?
TLS Online TPP Program

#Question id: 13047

#Unit 13. Methods in Biology

8-Azaguanine renders the myeloma cells
TLS Online TPP Program

#Question id: 11400

#Unit 9. Diversity of Life Forms

What is the primary ecological role of prokaryotes?
TLS Online TPP Program

#Question id: 12343

#Unit 10. Ecological Principles

Hybrids between some related species of plants are sterile because the parent plants had different chromosome numbers. Occasionally the chromosome number of such a hybrid  plant doubles spontaneously. Which of the following best describes the descendants of those plants with the double chromosome number?