Plasmids that have genes that decrease bacterial susceptibility to antibiotics are called ________ factors.
A. metabolic
B. col
C. virulence
D. resistance
Answer: D
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The plant hormone structurally similar to adenine is ____
a. brassinosteroid b. abscisic acid c. ethylene d. cytokinin e. systemin
Sickle cell disease is a caused by a mutation that ________
A) affects lipids B) causes abnormal hemoglobin structure C) causes excess mucus D) causes blindness and retardation E) can be diagnosed by using a karyotype
DNA methylation suppresses gene expression in eukaryotes
____________________ Indicate whether the statement is true or false.
Two populations of birds with somewhat different coloration live on opposite sides of a peninsula. The habitat between the populations is not suitable for these birds. When birds from the two populations are brought together, they produce young whose appearance is intermediate between the two parents. These offspring will breed with each other or with birds from either parent population, and all offspring of these pairings appear intermediate to various degrees. The two populations are _____.
A. different subspecies, under the morphological species concept B. different species, under the biological species concept C. different species, under the phylogenetic species concept