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TLS Online TPP Program

#Question id: 8848

A carbon skeleton is covalently bonded to both an amino group and a carboxyl group. When placed in water it

#Section 2: Evolution
  1. would function only as an acid because of the carboxyl group.
  2. would function only as a base because of the amino group.
  3. would function as neither an acid nor a base.
  4. would function as both an acid and a base.
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TLS Online TPP Program

#Question id: 16888

#Section 3: Mathematics and Quantitative Ecology

This is an example of:
TLS Online TPP Program

#Question id: 16865

#General Aptitude

I am worried_____ the exam.
TLS Online TPP Program

#Question id: 16892

#Section 3: Mathematics and Quantitative Ecology

A test to screen for a serious but curable disease is similar to hypothesis testing, with a null hypothesis of no disease, and an alternative hypothesis of disease. If the null hypothesis is rejected treatment will be given. Otherwise, it will not. Assuming the treatment does not have serious side effects, in this scenario it is better to increase the probability of:
TLS Online TPP Program

#Question id: 8931

#Section 2: Evolution

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?
TLS Online TPP Program

#Question id: 8929

#Section 2: Evolution

An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be
1. a clade.
2. a grade.
3. monophyletic.
4. paraphyletic.
5. polyphyletic.