#Question id: 12626
#Unit 6. System Physiology – Plant
#Question id: 4165
#Unit 3. Fundamental Processes
Which is true about proofreading activity during the synthesis of aminoacyl-tRNAs?
#Question id: 7014
#Unit 5. Developmental Biology
Microglia are often considered the “immune cells” of the central nervous system, since they function:
#Question id: 2869
#Unit 2. Cellular Organization
Galactose imported into the yeast cell is converted to galactose 6-phosphate by a pathway involving six enzymes, whose genes are scattered over three chromosomes. Transcription of these genes is regulated by the combined actions of the proteins Gal4p, Gal80p, and Gal3p,
i. GAL3 |
a. Interaction with the Gal80p-Gal4p complex and activates Gal4p. |
ii. GAL4 |
b. Recruits SAGA, Mediator, and TFIID to the galactose promoters, leading to DNA polymerase II recruitment and initiation of transcription |
iii. GAL80 |
c. Transcriptional inhibitor |
d. Transcriptional activator |
#Question id: 458
#Unit 1. Molecules and their Interaction Relevant to Biology
Ten people are sitting in a row. Their objective is to whisper a secret from one person to the next all the way down the row. The first person whispers the secret to the second person who passes the secret to the third person and so on. After whispering to the third person, the second person in the row notices the ninth person has fallen asleep in their chair, so she gets up, goes down the row and shakes person nine awake. This example is similar to ________.