The DNA in a prokaryotic cell is found in a membrane bound nucleus
1.True
2.False
2
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_____, such as sea squirts, share features of the chordate body plan during early development
A. Tunicates B. Echinoderms C. Chordates D. Cephalochordates
Which of the following is a good example of two genes that are orthologous?
A) the promoter and the repressor genes of the lac operon in E. coli B) the genes for the first two enzymes in the glycolytic pathway C) the gene for the photosynthetic enzyme RuBisCO in a fern and in an oak D) the human gene for the cell surface protein Siglec-12, and the human pseudogene Siglec-13 E) None of these pairs are orthologous.
Estuaries receive nutrients both from tides and from streams and rivers
Indicate whether the statement is true or false
Which structure does not represent a mode of vegetative reproduction?
A. stolons B. adventitious plantlets C. rhizoids D. runners E. rhizomes F. suckers