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TLS Online TPP Program

#Question id: 3939

When used to describe the RNA polymerases, the term “processive” refers to:

#Unit 3. Fundamental Processes

  1. the ability to recognize and bind to a promoter region.

  2. the ability to remain attached to DNA and form long RNAs.

  3. the ability to add nucleotide triphosphates to a growing RNA chain.

  4. all of the above.

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TLS Online TPP Program

#Question id: 23106

#Unit 2. Cellular Organization

Some of the events are mentioned below, Choose the incorrect statement, 
TLS Online TPP Program

#Question id: 19867

#Unit 13. Methods in Biology

Which of the following variants of PCR were devised to prevent non-specific amplification at low temperature?
TLS Online TPP Program

#Question id: 2712

#Unit 2. Cellular Organization

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of cytosine (C) nucleotides in the DNA of promoters of a mammalian system. Which of the following results would she most likely see?
TLS Online TPP Program

#Question id: 11057

#Unit 10. Ecological Principles

Bombardier beetles release an explosive mixture of quinones and hydrogen peroxide from glands at the end of their abdomen when disturbed by grasshopper mice and other predators. This is an example of what kind of defense against predation?
TLS Online TPP Program

#Question id: 19029

#Unit 9. Diversity of Life Forms

Assuming  that  they all belong to the same plant, arrange the following structures from largest to smallest (or from most inclusive to least inclusive). 
1. Spores                 2. Sporophylls 
3. Sporophytes 4. Sporangia