Active Raf subsequently phosphorylates activation loop of MEK on one or two:

TLS Online TPP Program

#Question id: 19276

#Unit 9. Diversity of Life Forms

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a 

TLS Online TPP Program

#Question id: 19277

#Unit 9. Diversity of Life Forms

which of these statements correctly describes a portion of the pine life cycle? 

TLS Online TPP Program

#Question id: 19278

#Unit 9. Diversity of Life Forms

which of these statements is true of the pine life cycle? 

TLS Online TPP Program

#Question id: 19279

#Unit 9. Diversity of Life Forms

which features of cycads makes them similar to many angiosperms? 

1. They have exposed ovules

2. They have flagellated sperm

3. They are pollinated by animals

TLS Online TPP Program

#Question id: 19280

#Unit 9. Diversity of Life Forms

In which of the following taxa does the mature sporophyte depend completely on the gametophyte for nutrition? 

TLS Online TPP Program

#Question id: 19281

#Unit 9. Diversity of Life Forms

A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, the following characteristics are noted: flagellated sperm, xylem with tracheids, separate gametophyte and sporophyte generations with the sporophyte dominant, and no seeds. This plant is probably most closely related to