Which of the following statements about bacterial mRNA transcripts is TRUE? Group of answer choices Most of bacterial genes contain a large number of introns and small number of exons. Transcription and translation take place separately in bacterial cells. None of the answers are true Unlike eukaryotes, bacterial mRNA transcripts do not typically contain untranslated regions.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

digestion

it excretes wastes

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.