Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 55803
TLS Online TPP Program

#Question id: 10466

In Arabidopsis, phot1 mutants have a normal avoidance response and a poor accumulation response, phot2 mutants lack the avoidance response but retain a fairly normal accumulation response, while phot1/phot2 double mutant lack both the avoidance and accumulation responses. These results indicate that,

#Unit 6. System Physiology – Plant
  1. Phot1 plays a key role in the avoidance response, and that both phot1 and phot2 contribute to the accumulation response
  2. Phot2 plays a key role in the avoidance response, and that both phot1 and phot2 contribute to the accumulation response
  3. Phot2 plays a key role in the accumulation response, and that both phot1 and phot2 contribute to the accumulation response as well as in avoidance response 
  4. phot1 mutants in fact do not survive in the field under conditions of full sunlight due to photooxidative damage
More Questions
TLS Online TPP Program

#Question id: 15409

#Unit 8. Inheritance Biology

 A heterozygous trihybrid corn plant is testcrossed and the following progeny are produced (all traits are recessive to their wildtype alternative);
          booster                              6
          booster, silkless                  137       
          booster, liguleless, silkless      291
          liguleless                          142
          liguleless, silkless                  3
          silkless                            30
          booster, liguleless                  34
          wildtype                            339
What is the order of the loci on the chromosome? 
TLS Online TPP Program

#Question id: 15408

#Unit 8. Inheritance Biology

Which of the following is not a protein or group of proteins required for conjugation to occur?
TLS Online TPP Program

#Question id: 15407

#Unit 8. Inheritance Biology

The end result of F factor mediated conjugation:
TLS Online TPP Program

#Question id: 15406

#Unit 8. Inheritance Biology

Which method of gene transfer involves direct contact between the bacteria?
TLS Online TPP Program

#Question id: 15388

#Unit 8. Inheritance Biology

What do transduction, transformation, and conjugation have in common?
TLS Online TPP Program

#Question id: 15387

#Unit 8. Inheritance Biology

How might the results of Bernard Davis's U tube experiment have been different if each strain were only mutant for a single gene?