The part of the vascular plant that transports sugars produced by photosynthesis to the nongreen parts of the plant is the
A. stomata.
B. xylem.
C. phloem.
D. cuticle.
E. root.
C. phloem.
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Currently, what information can be obtained from sequencing an individual's genome?
A) Information about gene variants that predispose a person to a disease, such as cancer. B) Information about gene variants that predispose a person to criminal activity. C) Information that psychiatrists can use to predict personality and behavior. D) Information that will accurately predict the life span of an individual.
Which statement describes the function of telomeres?
a. Telomeres are DNA segments that encode cell cycle checkpoint proteins. b. Telomeres are where DNA polymerase binds to initiate DNA replication. c. Telomeres serve as attachment points where microtubules bind to separate chromosomes during anaphase. d. Telomeres are added to chromosomes with each round of replication to increase DNA stability. e. Telomeres protect the coding regions of chromosomes because chromosomes are shortened with each round of replication.
If one strand of DNA is CGGTAC, then the complementary strand would be
A) GCCTAG. B) GCCAUC. C) TAACGT. D) GCCATG.
Which of the following procedures is currently the standard test used in the United States for evaluating the efficiency of antiseptics and disinfectants?
A) use-dilution test B) microbial death rate C) in-use test D) Kelsey-Sykes capacity test E) phenol coefficient