Two separate chains of DNA are wound around each other, each following a helical (coiling) path, resulting in:

TLS Online TPP Program

#Question id: 4161

#Unit 3. Fundamental Processes

The link between an activated amino acid and tRNA is an __ bond between the __ of the amino acid and a hydroxyl group of the tRNA.

TLS Online TPP Program

#Question id: 28712

#Unit 2. Cellular Organization

COPII Vesicle transport from ER to cis Golgi network, these COPII vesicle coated with proteins_____?_____

TLS Online TPP Program

#Question id: 15617

#Unit 13. Methods in Biology

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1–, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac–). During an condition you have a wild type (Lac+) strain carrying a Tn5 insertion known to be near several Lac genes on the E. coli chromosome. You grow P1 phage on this strain and use the resulting phage lysate to infect the lac1– strain, selecting for kanamycin resistance (Kanr). Among 100 Kanr transductants, you find that 82 are Lac– and 18 are Lac+. Express the distance between Tn5 and the lac1– mutation as a cotransduction frequency;

TLS Online TPP Program

#Question id: 29531

#Unit 6. System Physiology – Plant

Which of the following compound act as cues for natural enemies of the insect herbivore, for example parasitic wasps

TLS Online TPP Program

#Question id: 26346

#Unit 2. Cellular Organization

Choose the correct statement