Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 163
TLS Online TPP Program

#Question id: 181

Titration of valine by a strong base, for example NaOH, reveals two pK’s. The titration reaction occurring at pK2 (pK2 = 9.62) is:

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. —COOH + OH-  -> —COO- + H2O.

  2. —COOH + —NH2 -> —COO- + —NH2+.

  3.  —COO- + —NH2+ -> —COOH + —NH2.

  4. —NH3+ + OH-  -> —NH2 + H2O.

More Questions
TLS Online TPP Program

#Question id: 5074

#Unit 5. Developmental Biology

The "mid-blastula transition" is the point in development when:
TLS Online TPP Program

#Question id: 5075

#Unit 5. Developmental Biology

Which of the following developmental processes has been most recently completed in the amphibian embryo shown here?

 
TLS Online TPP Program

#Question id: 5076

#Unit 5. Developmental Biology

Homeotic genes are responsible for:
TLS Online TPP Program

#Question id: 5077

#Unit 5. Developmental Biology

Humans and mice heterozygous for loss-of-function mutations in Pax6 have:
TLS Online TPP Program

#Question id: 5078

#Unit 5. Developmental Biology

A human blastomere is:
TLS Online TPP Program

#Question id: 5079

#Unit 5. Developmental Biology

The pattern of embryonic development in which only the cells lacking yolk subsequently undergo cleavage is called: