What causes the formation of a polyribosome in prokaryotic transcription?

a. initiation of transcription and the formation of the transcription bubble
b. termination of transcription when polymerase stalls in the A-T-rich regions
c. multiple instances of translation on the same mRNA
d. binding of polymerase to the promoter region


c. multiple instances of translation on the same mRNA

Biology & Microbiology

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Structural and functional organization emerges

during the __________ and __________ of an individual. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which of the following short descriptions best describes the body plan of modern sponges?

a. an aggregation of cells built around a water canal system b. a complete gut with an anterior mouth and posterior anus c. a complete gut with one opening serving as both mouth and anus d. a mouth connected to a blind sac in which digestion occurs e. an aggregation of cells in a random arrangement

Biology & Microbiology

In a typical human secretory cell, which of the following membranes has the largest surface area?

A.) lysosomes B.) plasma membrane C.) smooth ER D.) rough ER E.) nuclear inner membrane

Biology & Microbiology

Insulin's affect on reducing blood glucose levels are counteracted by glucagon's actions, which increase blood glucose.

Answer the following statement true (T) or false (F)

Biology & Microbiology