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#Question id: 380


The Henderson-Hasselbalch equation:

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. allows the graphic determination of the molecular weight of a weak acid from its pH alone.

  2. is equally useful with solutions of acetic acid and of hydrochloric acid.

  3. relates the pH of a solution to the pKa and the concentrations of acid and conjugate base.

  4. does not explain the behavior of di- or tri-basic weak acids

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TLS Online TPP Program

#Question id: 3523

#Unit 8. Inheritance Biology

If the number of heterozygous pairs involved in a particular cross is three, the phenotype ratio obtained in their F2 generation will be-

TLS Online TPP Program

#Question id: 3524

#Unit 8. Inheritance Biology

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

TLS Online TPP Program

#Question id: 3525

#Unit 8. Inheritance Biology

In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype was crossed with rrtt plant results progeny, are

TLS Online TPP Program

#Question id: 3526

#Unit 8. Inheritance Biology

In garden peas, the allele for tall plants (D) is completely dominant to the allele for dwarf plants (d) and the allele for violet flower color (W) is completely dominant to the allele for white flower color (w). In a cross between a tall violet plant, with the genotype DDWw, and a dwarf white plant, what phenotypic ratio of the progeny would be expected from this cross?

TLS Online TPP Program

#Question id: 3527

#Unit 8. Inheritance Biology

Which of the following genetic cross would produce 1/4 yellow round, 1/4 yellow wrinkle, 1/4 Green round and ΒΌ Green Wrinkle seeded plant?

TLS Online TPP Program

#Question id: 3528

#Unit 8. Inheritance Biology

Consider the following cross:

A/a ; B/b ; C/c ; D/d ; E/e  X a/a ; B/b ; c/c ; D/d ; e/e

What proportion of progeny will phenotypically resemble the first parent?