Practice Questions

TLS Online TPP Program

#Question id: 338

What is the difference between covalent bonds and ionic bonds?

#SCPH06 I Botany

Covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms.
Covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms.
Covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.
Covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms.

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TLS Online TPP Program

#Question id: 371

#SCPH05 I Biotechnology

How many milliliters of a 2.0 M solution of boric acid must be added to 600 mL of a solution of 10 mM sodium borate in order for the pH to be 9.45? (pKa of boric acid = 9.24)

TLS Online TPP Program

#Question id: 1592

#SCPH28 | Zoology

Which of these molecules is incorrectly paired with a source?

TLS Online TPP Program

#Question id: 4194

#SCPH28 | Zoology

After the action of peptidyl transferase, the peptidyl-tRNA is located at the

TLS Online TPP Program

#Question id: 3251

#SCPH28 | Zoology

Looking at 3 allele per locus and following Hardy Weinberg equilibrium what will be the expected heterozygosity if q1=0.5, q2=0.3, q3=0.2