The ________ produce over 500 characterized antibiotics
A) Bacteroidetes
B) mycobacteria
C) pseudomonads
D) streptomycetes
Answer: D
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Bacterial conjugation involves
A. a bacteriophage carrying donor DNA to the recipient cell. B. new progeny cells with genes from two parent bacterial cells. C. a donor cell with a plasmid that synthesizes a pilus. D. naked DNA fragments from a lysed donor cell taken up by a recipient cell.
Deviations from __________ indicate that a population is evolving. Fill in the blank(s) with the appropriate word(s)
In echinoderms, gastrulation takes place through a primitive groove
____________________ Indicate whether the statement is true or false.
Each cell contains two chromosomes with genes for the same traits; these chromosomes are called ________
Fill in the blank(s) with correct word