Long-term potentiation involves a long-lasting decrease in the strength of synaptic connections

____________________ Indicate whether the statement is true or false.


F, increase

Biology & Microbiology

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Genes whose expression (or abnormal expression) causes cancer are called

A. carcinogens. B. oncogenes. C. cancer genes. D. progenes.

Biology & Microbiology

In conjugation the donor cell is recognized by the presence of

A. an F plasmid. B. a Y chromosome. C. diploid chromosomes. D. an SOS response. E. an F plasmid AND diploid chromosomes.

Biology & Microbiology

Which statement accurately describes global gene regulation in bacteria?

A) Sigma factors are not involved in gene regulation, only in attachment of the polymerase to the promoter. B) Alternative sigma factors that recognize different promoters are a mechanism of global gene regulation. C) E. coli cells devote more energy to the production of ribosomes during stress so that global gene regulation can occur. D) All promoters are recognized by all sigma factors.

Biology & Microbiology

Stomata

a. are found in the root cells. b. may be found scattered anywhere throughout the plant. c. allow the movement of gases into and out of plants. d. cause the excessive loss of water from plants. e. are more numerous on the upper surface of most leaves than on the lower surface.

Biology & Microbiology