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TLS Online TPP Program

#Question id: 12123

Which of the following studies would shed light on the mechanism of spread of H5N1 from Asia?

#Unit 10. Ecological Principles
  1. Perform cloacal or saliva smears of migrating waterfowl to monitor whether any infected birds show up in Alaska.
  2. Test fecal samples for H5N1 in Asian waterfowl that live near domestic poultry farms.
  3. Test domestic chickens and ducks worldwide after they have been slaughtered for human consumption for the presence of H5N1.
  4. Locate and destroy birds infected with H5N1 in Asian open-air poultry markets.?
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TLS Online TPP Program

#Question id: 23776

#Unit 7. System Physiology – Animal

What is the blind spot?
TLS Online TPP Program

#Question id: 13183

#Unit 10. Ecological Principles

The MacArthur-Wilson equilibrium model of island biogeography predicts the number of species found on islands. The figure below depicts two volcanic islands located off a section of mainland coast.


According to the MacArthur-Wilson model, how would the number of bird species change from the time of an island's formation (assuming it remains constant in size and isolation)?
TLS Online TPP Program

#Question id: 29428

#Unit 6. System Physiology – Plant

Thioredoxins occur in multiple forms and have conserved structures to interact with target enzymes , different types of thioredoxin in cells and their location is given
TLS Online TPP Program

#Question id: 19990

#Unit 2. Cellular Organization

If entire genome is encoding than mathematically human should have 106 genes but humans have only 30,000 to 50,000 genes this is representing
TLS Online TPP Program

#Question id: 2902

#Unit 2. Cellular Organization

The function and positioning of the histone variants can be studied by an application of technologies used in genomics. One useful technology is chromatin immunoprecipitation, or chromatin IP (ChIP). The correct sequence of the processes that occur in this experiment will be?

1. A histone variant with an epitope tag is introduced into a particular cell type, where it is incorporated into nucleosomes.

2. The pattern of hybridization on the microarray reveals the DNA sequences bound by the nucleosomes with the histone variant.

3. Antibody is added, and the nucleosomes containing the epitope-tagged histone variant are selectively precipitated.

4. Chromatin is isolated from the cells and digested briefly with micrococcal nuclease (MNase).

5. The DNA in these nucleosomes is extracted from the precipitate, labeled, and used to probe a microarray representing all or part of the genomic sequences of that particular cell type.