The twin goals of systematics concern
a. taxonomy and ecology.
b. phylogeny and taxonomy.
c. phylogeny and ecology.
d. taxonomy and disease control.
e. phylogeny and disease control.
B
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In humans, the egg provides the mitochondria to the zygote. In plants, which organelles would be provided by the egg and not by the sperm?
A. nuclei and chloroplasts B. chloroplasts and mitochondria C. nuclei D. mitochondria E. chloroplasts
In Drosophila and other animals, Hox genes encode transcription factors that control development; but in Arabidopsis, a different family of transcription factors is produced with a different set of conserved amino acids
These are encoded by what group of genes?
The hominin evolutionary line diverged from that leading to the great apes about ____ million years ago.
A. 1.5 B. 2 C. 3 D. 7 E. 13
Dimpled cheeks are dominant to undimpled cheeks. If there exists a 50 percent chance that a child will have dimpled cheeks, the parental genotypes must be:
A) Dd and dd. B) dd and dd. C) DD and dd. D) Dd and Dd. E) DD and Dd.