Which of the following is TRUE of cork?
A. It represents the major dermal tissue in bark.
B. It helps transport nutrients and fluid.
C. It serves a protective function
D. It both represents the major dermal tissue in bark and helps transport nutrients and fluid.
E. It both represents the major dermal tissue in bark and serves a protective function.
E. It both represents the major dermal tissue in bark and serves a protective function.
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A centromere is least likely to ____
a. divide in anaphase of mitosis b. connect sister chromatids c. attach chromosomes to spindle fibers d. cross over during prophase I of meiosis e. be a component of DNA
Feces in a sterile specimen cup is:
a. acceptable. b. not acceptable.
Before mRNA can be used in translation (the making of a new protein), nonfunctional segments of the gene that have been transcribed into the strand of pre-mRNA have to be "edited" out. The nonfunctional parts of the gene are cut out (and the functional parts spliced together) by a special type of enzyme. What are these enzymes called?
a) introns b) exons c) genomes d) snRNPs ("snurps") e) polyribosomes
The information encoded in DNA is used within a cell in a two-stage process. The two stages of this process are called
A) denaturation and renaturation. B) base-pairing and denaturation. C) replication and division. D) transcription and translation. E) replication and transcription.