A cohort is:
a. a group of individuals of the same species born during the same time interval
b. any member of the same species
c. any member of the same species and sex within a population
d. a sexual mate
e. a litter mate or sibling within a large population
a
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The work of Gregor Mendel provided an answer to two prevailing hypotheses popular at the time. What were these two hypotheses?
A) Mitosis is only typical in vertebrates. Meiosis is only typical in invertebrates. B) The two major hypotheses of the time were blending inheritance and inheritance of acquired characteristics. C) Animals use one set of rules for inheritance, while plants use a different set. D) Peas and other domestic plants are unsuited for studies of inheritance, but wild plants are perfectly suited. E) Self-fertilization is the rule in plants, while cross-fertilization is the rule in animals.
Which type of proteins is embedded in the cell membrane in both active transport and facilitated transport?
A. carrier B. cytoskeletal C. structural D. targeted
The MOST metabolically diverse phylum of Bacteria known to date is the Proteobacteria
Indicate whether the statement is true or false.
In a fruit fly embryo, a homeotic gene Antp determines where legs grow. When the promoter of Antp is mutated, a fly ends up with legs growing out of its head in place of antennae. In this mutation
A. antennae grow where the legs would normally be found. B. Antp must be turned off in all of the fly cells. C. Antp must be turned on in the head. D. the Antp gene, and its transcription factor, and enhancer sequence are turned on in the head. E. the Antp enhancer sequence, or transcription factor, is not functional.