A solution was prepared by dissolving 0.02 moles of acetic acid (HOAc; pKa = 4.8) in water to give 1 liter of solution. What is the pH? To this solution was then added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this problem, you may ignore changes in volume due to the addition of NaOH).

TLS Online TPP Program

#Question id: 3524

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following genotypes would produce the greatest variety of gametes of the alleles assorted independently?

TLS Online TPP Program

#Question id: 548

#Section 2: General Biology

Which one of the following statements is true of enzyme catalysts?

TLS Online TPP Program

#Question id: 4141

#Section 3: Genetics, Cellular and Molecular Biology

Bacterial ribosomes:

TLS Online TPP Program

#Question id: 12997

#Section 2: General Biology

Which of the given reason is correct to minimize the repulsion in an α-helix

a) positively charged amino acids are often found near the amino terminus of the helical segment

b) negatively charged amino acids are often found near the amino terminus of the helical segment

c) positively charged amino acids are often found near the C-terminus of the helical segment.

d) negatively charged amino acids are often found near the C-terminus of the helical segment.

TLS Online TPP Program

#Question id: 1935

#Section 2: General Biology

Evidence for immune surveillance of tumors comes from a substantially increased incidence of certain cancers in patients with: