There are two classes of snoRNPs involved in rRNA processing in nucleolus, so choose which of the following is correctly matched with their function 

a.The box H/ACA snoRNPs are involved in 2-O-methylations

b.The box H/ACA snoRNPs are involved in pseudouridylylation

c.The box C/D snoRNPs function in 2-O-methylations

d.The box C/D snoRNPs function in pseudouridylylation

#Question id: 11228

#Unit 9. Evolution & Diversity of Life Forms

Though plants, fungi, and prokaryotes all have cell walls, we place them in different taxa. Which of these observations comes closest to explaining the basis for placing these organisms in different taxa, well before relevant data from molecular systematics became available?

#Question id: 11229

#Unit 9. Evolution & Diversity of Life Forms

Which is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.

#Question id: 11230

#Unit 9. Evolution & Diversity of Life Forms

Which statement about bacterial cell walls is false?

#Question id: 11231

#Unit 9. Evolution & Diversity of Life Forms

Which of these is the most common compound in the cell walls of gram-positive bacteria?

#Question id: 11232

#Unit 9. Evolution & Diversity of Life Forms

Penicillin is an antibiotic that inhibits enzymes from catalyzing the synthesis of peptidoglycan, so which prokaryotes should be most vulnerable to inhibition by penicillin?

#Question id: 11233

#Unit 9. Evolution & Diversity of Life Forms

Jams, jellies, preserves, honey, and other foodstuffs with a high sugar content hardly ever become contaminated by bacteria, even when the food containers are left open at room temperature. This is because bacteria that encounter such an environment