Exons in mRNAs are excised and left in the nucleus.

Answer the following statement true (T) or false (F)


False

Exon is short for "expressed sequences." Exons in mRNAs are spliced back together again after introns that are removed.

Biology & Microbiology

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What will be an ideal response?

Biology & Microbiology

Which of the following is not a benefit of agar as a solid medium?

A. Easily digested by most microbes B. Holds moisture C. Flexibility D. Can be inoculated and poured at a temperature that is not harmful E. Solid at room temperature

Biology & Microbiology

Reznick and Endler were interested in the effects of

__________ on guppy evolution. a. predation b. competition c. population density d. density-independent factors e. mating rituals

Biology & Microbiology

Autosomal monosomy is not seen in live births because:a

its effects are so small as to be overlooked. b. its effects do not set in until adulthood. c. its effects are so lethal as to cause spontaneous abortion early in pregnancy. d. it only occurs in sex chromosomes and therefore does affect nonreproductive function. e. they lead to the establishment of a clone of abnormal cells

Biology & Microbiology