Put the Following Events of Transcription in Chronological Order

question 38

Multiple Choice

Put the following events of transcription in chronological order. 1. Sigma binds to the promoter region.
2) The double helix of DNA is unwound,breaking hydrogen bonds between complementary strands.
3) Sigma binds to RNA polymerase.
4) Sigma is released.
5) Transcription begins.

• A)2,3,4,5,1
• B)2,3,1,4,5
• C)3,1,2,5,4
• D)3,2,1,4,5

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Definitions:

Wavelength

The distance between successive peaks (or troughs) of a wave, commonly used in discussions of light, sound, and other types of waves.

Stimulate

To encourage something to grow, develop, or become active.

Young-Helmholtz Trichromatic Model

A theory of color vision proposing that the human eye has three types of receptors with different sensitivities to different light wavelengths.

Primary Color

Fundamental colors (typically red, yellow, and blue) that cannot be created by mixing other colors and from which other colors can be derived.