DNA in extant prokaryotic cells is circular.

a. true
b. false


Ans: a. true

Biology & Microbiology

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A particular neuron does not release neurotransmitters into the synaptic cleft. Further investigation shows that this cell does not respond to calcium ions that are necessary for t- and v-SNARE complex interaction. The most likely problem is associated with the function of

A) synaptic boutons. B) acetylcholinesterase. C) synaptotagmin. D) GABA receptors. E) calcium ions.

Biology & Microbiology

In what phase of the cell cycle does a typical

cell spend most of its life?

a. interphase b. prophase c. metaphase d. anaphase e. telophase

Biology & Microbiology

Plants do photosynthesis only and animals do cellular respiration only.

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

Biology & Microbiology

Which of the following statements is TRUE of glycolysis?

A) It can be performed only by bacteria. B) It produces a net gain of FADH. C) It produces a net gain of ATP. D) It produces more ATP than does aerobic respiration. E) It only takes place under anaerobic conditions.

Biology & Microbiology