Plants and algae contain this organelle not found in heterotrophs:
a. nucleus.
b. mitochondria.
c. chloroplasts.
d. flagella.
C
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Which is most abundant and active in divisome complexes?
A) FtsZ B) DNA replication forks C) MinCD D) MreB
Which one of the following organisms has coenocytic organization?
A. humans B. amphibians C. plants D. green algae (Codium and Caulerpa)
Hox genes are a family of transcription factors that regulate development throughout the animal kingdom. Studies of Hox genes in mice and Drosophila showed that many Hox genes are conserved between both species, and several Hox genes duplicated into new genes with novel functions within mice. Some Hox genes have even lost all function. Hox genes provide an example of which of the following? Check all that apply.
_____ orthologs _____ paralogs _____ heterologues _____ pseudogenes Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about homology? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces. the switch in function is an example of a(n) ____________.
A. Paedomorphosis B. An analogy C. Exaptation D. An adaptation