If molecular techniques predict the phylogeny shown here, which of the following shows the expected order of appearance of species in the fossil record from earliest appearing to most recently appearing?
A. chara, liverworts, hornworts, lycophytes
B. chara, lycophytes, liverworts, hornworts
C. lycophytes, hornworts, liverworts, chara
D. lycophytes, liverworts, hornworts, chara
E. hornworts, chara, lycophytes, liverworts
A
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Binary fission is:
A. cell division by meiosis B. cell division by mitosis C. cell division by simple splitting D. fluorescent in situ hybridization (FISH) E. exchange of genes between two cells
Which nucleotide pairs mark the beginning and end of each intron?
a. GG at the 5’ end, AU at the 3’ end b. AG at the 5’ end, GU at the 3’ end c. GU at the 5’ end, AG at the 3’ end d. GA at the 5’ end, AG at the 3’ end
Which substance binds more tightly than oxygen to hemoglobin?
a. nitrogen b. carbon dioxide c. hydrogen d. helium e. carbon monoxide
Formation of a tetraploid plant species from two different diploid parental species of plants is an example of
A. punctuated equilibrium. B. gradualism. C. extinction. D. a postzygotic barrier to evolution. E. a prezygotic barrier to evolution.