What is a constitutive plant defense?

TLS Online TPP Program

#Question id: 11613

#Unit 6. System Physiology – Plant

Gibberellin can induce auxin biosynthesis and that auxin can induce gibberellin biosynthesis. If the pea plants are decapitated, leading to  a cessation in stem elongation, which one of the following prediction about this experiment is correct?

TLS Online TPP Program

#Question id: 1376

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is NOT TRUE about gap junctions?

TLS Online TPP Program

#Question id: 19122

#Unit 8. Inheritance Biology

Trisomy 18 is one of the most common trisomies observed in human populations. You prepare DNA samples from two unrelated infants, both with trisomy 18, and from their parents. You then type the infants and their parents for four SSRs distributed along chromosome 18:

     

             

                                         

In which division of meiosis did nondisjunction occur in Family 2?

TLS Online TPP Program

#Question id: 7705

#Unit 9. Diversity of Life Forms

 Based on this tree, which statement is correct?

TLS Online TPP Program

#Question id: 5695

#Unit 8. Inheritance Biology

Triploids are usually autopolyploids. They arise spontaneously in nature, but they can be constructed by geneticists from the cross of a 4n (tetraploid) and a 2n (diploid). Triploids are characteristically sterile due to