Two plant species co-occur in a prairie. Species X always occurs near species Y. However, species    often occurs in isolation from species X and produces more seeds when alone than when growing next to species X. Which of the following interactions between species X and Y could generate this pattern?

#Question id: 2645

#Unit 2. Cellular Organization

When uncharged tRNA concentration is low what will you expect as the activity of tryptophan operon?

#Question id: 29454

#Unit 6. System Physiology – Plant

Identify A, B and C in auxin synthesis

a. Tryptophan (Trp)----------A-------------→ Indole-3-pyruvic acid 

b. (IPA) -----------B------------→ Indole-3-acetaldehyde (IAld)

c. Indole-3-acetaldehyde (IAld) ------------C-----------→ I3AA

#Question id: 18713

#Unit 13. Methods in Biology

#Question id: 10152

#Unit 6. System Physiology – Plant

Rubisco catalyzes both the carboxylation and the oxygenation of ribulose 1,5-bisphosphate, the oxygenase activity of rubisco causes partial loss of the carbon fixed by the Calvin–Benson cycle, to avoid loss a reaction takes place such as photorespiration, The following statements about photorespiration.

a.) To avoid drain of carbon out of the Calvin–Benson cycle is metabolized through the C2 oxidative photosynthetic carbon cycle

b.) In photorespiration involves chloroplasts, leaf peroxisomes, and mitochondria

c.) During oxygenation process Rubisco fixes oxygen at high temperature

d.) One of the rection of the C2 cycle is Glycine converted into the serine is takes place in peroxisome

Which of following from above combination is CORRECT?

#Question id: 24659

#Unit 2. Cellular Organization

Which two organelles are responsible for producing phospholipids and sphingolipids?