Electron transport molecules that only transfer electrons include
A. ubiquinone.
B. FAD.
C. NADP.
D. ferredoxin.
Answer: D
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When a plant zygote first forms, it starts to develop and elongate after mitosis begins
a. True b. False
The simplest eye structure, which is able to perceive light but not form an image, is called a(n) ____
a. compound eye b. single-lens eye c. ocellus d. ommatidia e. photoreceptor
The Dlx gene encodes a transcription factor that signals clusters of embryonic cells to ____ and gives rise to an appendage.
A. fold into the cardiac muscle B. protrude from the body C. form reproductive structures D. induce apoptosis in cells lining the appendages E. develop into the immune system
Unusual cellular extensions called prosthecae are associated with which of the following groups of proteobacteria?
A. alphaproteobacteria B. betaproteobacteria C. gammaproteobacteria D. deltaproteobacteria E. epsilonproteobacteria