TLS Online TPP Program

#Question id: 12793


Approximately how many Kg of carnivore production can be supported by a field plot containing 2000 Kg of plant material?

#Unit 10. Ecological Principles
  1. 20,000 
  2. 2,000 
  3. 200 
  4. 20
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TLS Online TPP Program

#Question id: 15150

#Unit 8. Inheritance Biology

In this problem we will explore some of the many ways that mutations in two different genes can interact to produce different Mendelian ratios. Consider a hypothetical insect species that has red eyes. Imagine mutations in two different unlinked genes that can, in certain combinations, block the formation of red eye pigment yielding mutants with white eyes. In principle, there are two different possible arrangements for two biochemical steps responsible for the formation of red eye pigment. The two genes might act in series such that a mutation in either gene would block the formation of red pigment. Alternatively, the two genes could act in parallel such that mutations in both genes would be required to block the formation of red pigment.
Further complexity arises from the possibility that mutations in either gene that lead to a block in enzymatic activity could be either dominant or recessive. If the crosses is made between a wild type insect with red eyes and a true breeding white eyed strain with mutations in both genes. Such considerations yield the Pathways in series with recessive mutations in both genes, the F1 progeny shows will have red eye, what is the expected phenotypic ratio of red to white eyed insects in the F2.

TLS Online TPP Program

#Question id: 23250

#Unit 13. Methods in Biology

In presence of ATP luciferase-mediated conversion of luciferin into which compound?

TLS Online TPP Program

#Question id: 21279

#Unit 12. Applied Biology

Which one of the following is a biomarker for asthma?

TLS Online TPP Program

#Question id: 5744

#Unit 8. Inheritance Biology

The basic diploid chromosome number in Rye Secale cereale is 14. A new species of rye is found that has 28 chromosome species. This species is said to be

TLS Online TPP Program

#Question id: 11024

#Unit 7. System Physiology – Animal

A 55-year-old man has been diagnosed with Stokes-Adams syndrome. Two minutes after the syndrome starts to cause active blockade of the cardiac impulse, which of the following is the pacemaker of the heart?