The tree above is based on which type of traits and what is the genus name for the most recent horse?
A. Genetic (DNA): Orohippus.
B. Morphological: Equus.
C. Molecular: Equus.
D. Genetic homology: Pliohippus.
E. Morphological: Hyracotherium.
B. Morphological: Equus.
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The ________________ can differentiate into stems, leaves, or flowers.
A. suspensor B. shoot meristem C. basal region D. central region E. root meristem
The results of Lederberg and Tatum’s experiments with E. coli auxotrophs indicated that ____
a. bacteria can be transformed when free DNA is available in their environment b. bacteria are able to exchange genetic material with eukaryotic organisms c. bacteria reproduce by sexual rather than asexual reproduction d. genetic recombination can occur in bacteria e. genetic recombination does not occur in bacteria since they do not undergo meiosis
__________ cover the body surface, and line its internal spaces. Fill in the blank(s) with the appropriate word(s)
Fertilization of plant gametes produces a ________________.
A. zygote B. gametophyte C. spore D. meiospore E. multicellular haploid plant