Activators are cis-acting sequences that increase transcription from a promoter

Indicate whether the statement is true or false


FALSE
Explanation: Activators are regulatory proteins that determine the efficiency of initiation of transcription.

Biology & Microbiology

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An operator and transcription unit are called an operon

Indicate whether the statement is true or false.

Biology & Microbiology

Which of the following statements describes the law of segregation?

a. Two alleles will be inherited together during gamete formation. b. Two genes will be inherited together during gamete formation. c. Two alleles will segregate during gamete formation. d. Two genes will segregate during mitosis.

Biology & Microbiology

What is the "central dogma"?

A. Much like all viruses, all cells use DNA to encode genetic information. B. For a given individual, the genetic information contained in the DNA of every cell is identical. C. The ability of a cell to survive depends on the accurate duplication of genetic information carried in its DNA. D. Within the cell, genetic information flows from DNA to RNA to protein. E. The earliest cells on Earth most likely used RNA to store and copy genetic information.

Biology & Microbiology

What single attribute determines that a human fetus is male?

A) the presence of a Y chromosome B) the absence of a Y chromosome C) the presence of two X chromosomes D) the absence of a second X chromosome

Biology & Microbiology