Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 55680
TLS Online TPP Program

#Question id: 9270

In the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy which of the statement of alternative pathway would be INCORRECT?

#Unit 6. System Physiology – Plant
  1. Excited chlorophyll can re-emit a photon and thereby return to its ground state—a process known as fluorescence, When it does so, the wavelength of fluorescence is slightly longer than the wavelength of absorption
  2. The excited chlorophyll can return to its ground state by directly converting its excitation energy into heat, with the emission of a photon
  3. Chlorophyll may participate in energy transfer, during which an excited chlorophyll transfers its energy to another molecule
  4. The photochemistry, in which the energy of the excited state causes chemical reactions to occur, the photochemical reactions of photosynthesis are among the fastest known chemical reactions
More Questions
TLS Online TPP Program

#Question id: 15383

#Unit 8. Inheritance Biology

You are trying to develop true breeding blue hydrangeas, but the plants in one corner of your plot consistently turn pink regardless of your mating strategy. Which of the following would you suspect?
TLS Online TPP Program

#Question id: 15382

#Unit 8. Inheritance Biology

In a group of fruit flies homozygous for an allele that causes a reduced number of thoracic bristles, you notice that the number of bristles varies from about half the normal number to only a few bristles. This is an example of which of the following?
TLS Online TPP Program

#Question id: 15381

#Unit 8. Inheritance Biology

Neurofibromatosis is a condition in humans which is generally inherited in a dominant fashion. Assuming this disorder is 90% penetrant, what is the chance that a single child born to a father with neurofibromatosis and a mother known not to carry the mutation will have the disorder?
TLS Online TPP Program

#Question id: 15380

#Unit 8. Inheritance Biology

In soybeans, resistance to sudden death syndrome (SDS) is inherited as a dominant condition. In some cases, individuals that are not resistant to SDS (but whose parents were) can pass the trait on to their progeny. This is an example of which of the following?
TLS Online TPP Program

#Question id: 15379

#Unit 8. Inheritance Biology

What are the possible offspring from a type A mother and a type AB father?
TLS Online TPP Program

#Question id: 15378

#Unit 8. Inheritance Biology

You find a pink geranium in your flowerbed of red geraniums. Seeds from self fertilization of this plant produce ¼ red plants, ½ pink plants, and ¼ white plants. When considering the visible phenotype, which explanation is most likely?