TLS Online TPP Program

#Question id: 5782


A ____ mutation is intentionally caused.

#Unit 8. Inheritance Biology
  1. spontaneous

  2. somatic

  3. site-directed

  4. conditional

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TLS Online TPP Program

#Question id: 10438

#Unit 6. System Physiology – Plant

Which of the following are participate in the control of circadian clocks and flowering?

TLS Online TPP Program

#Question id: 14475

#Unit 13. Methods in Biology

Probability of getting tail in a throw of a coin is

TLS Online TPP Program

#Question id: 15818

#Unit 8. Inheritance Biology

You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.

What is the maximum number of genes that these 20 mutants could represent?

TLS Online TPP Program

#Question id: 10219

#Unit 6. System Physiology – Plant

The PSII reaction center leads to easily  inactivation and damage by photoinhibition process while Photosystem I Is Protected from Active Oxygen Species, Why PSI protect from active oxygen species in compare to PSII

TLS Online TPP Program

#Question id: 12929

#Unit 13. Methods in Biology

Temperature at which the kinetic energy of the molecules lowers to reduce the chances of base paired sticky ends parting before they have been stabilized.