A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the following genes is absolutely conserved, which of the following would be the best choice on which to base the phylogeny?

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#Question id: 13026

#Unit 13. Methods in Biology

A blunt ended insert can not be ligated with a blunt ended vector by means of which of the followings:-

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#Question id: 29068

#Unit 10. Ecological Principles

A positive correlation between population density over time and individual fitness is known as___

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#Question id: 33275

#Unit 2. Cellular Organization

Which of the following is the central player in chromosome segregation?

a. Interpolar microtubules

b. Astral microtubules

c. K-fibers

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#Question id: 28941

#Unit 7. System Physiology – Animal

Oxytocin and vasopressin are synthesized in ___I______but released from____II______. 

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#Question id: 11969

#Unit 7. System Physiology – Animal

What is the importance of the mucus that are released by salivary glands?