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#Question id: 14753

German scientist Adolf Fick discovered that the rate of diffusion is directly proportional to the concentration gradient (∆cs /∆x)—that is, to the difference in concentration of substance s (∆cs ) between two points separated by the distance ∆x. According to Fick’s first law,

#Unit 6. System Physiology – Plant
  1. The movement of molecules by diffusion always proceeds nonspontaneous, down a gradient of concentration or chemical potential, until equilibrium is reached, movement of molecules is termed passive transport
  2. The rate of accumulation (or depletion) of concentration within the volume as proportional to the local curvature of the concentration gradient
  3. A substance will diffuse faster when the concentration gradient becomes steeper (∆cs is large) or when the diffusion coefficient is increased
  4. A cell membrane potential to standard potential and to the activities of the electroactive, relates the effective concentration
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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 ¼ 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?
TLS Online TPP Program

#Question id: 3529

#Unit 8. Inheritance Biology

Mendel crossed tall and round seeded pea plants with dwarf and wrinkle seeded pea. The F1 plants were all tall and round seed. What is the probability of tall plant with wrinkle seed in F2 generation?
TLS Online TPP Program

#Question id: 3530

#Unit 8. Inheritance Biology

Mendel’s law of segregation, as applied to the behavior of chromosomes in meiosis, means that: