Constitutive genes are those that have constant levels of expression

Indicate whether the statement is true or false


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Biology & Microbiology

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Select all answers that describe the reagents required for reversible terminator sequencing

A. dATP, dGTP, dCTP, and dTTP with the same fluorescent label B. dATP, dGTP, dCTP, and dTTP with different fluorescent labels C. dATP, dGTP, dCTP, and dTTP with a blocking group on the 5' end D. dATP, dGTP, dCTP, and dTTP with a blocking group on the 3' end E. dideoxy forms of dATP, dGTP, dCTP, and dTTP, which are used sequentially

Biology & Microbiology

Effector helper T cells release cytokines only

when which of the following occur?

a. The effector helper T cell binds to an antigen-presenting dendritic cell. b. The effector helper T cell binds to a memory T cell. c. The effector helper T cell binds to a complement protein. d. The effector helper T cell binds to MHCantigen complexes on B cells. e. Any of these can stimulate cytokine production.

Biology & Microbiology

One of the most common organisms used to produce knockouts is ________

A) cows B) horses C) mice D) Drosophila E) All of the above

Biology & Microbiology

Which of these is a component of ribosomes? 

A. DNA B. rRNA C. tRNA D. ribosome

Biology & Microbiology