Which of the following could be used to demonstrate a homeostatic mechanism?
a. city buses transporting people from their houses to their jobs
b. water stored behind a dam being released to make electricity
c. a hot water heater keeping the water temperature near 100 degrees
d. a series of underground passageways connected to a large building
e. the seasonal changes that occur in the daily temperature
C
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Current sequencing technologies have major advantages over the dideoxy method because they produce more sequence in less time and at less cost. Which of the following would provide further advantage?
A) being able to produce finer analysis of smaller sequences B) the ability to produce primers for increasingly long sequences C) the ability to sequence noncoding regions D) sequencing very rare DNAs from degraded samples E) sequencing without the need to amplify the DNA
Which membranes line the passageways that open to the exterior of the body, including those of the respiratory, digestive, reproductive, and urinary systems in the body?
A) cutaneous B) basement C) mucous D) serous
At the completion of oogenesis, ____ are produced
a. male gametes b. four sperm cells c. four egg cells d. one egg cell and three polar bodies e. haploid spores
If the sequence of bases in a section of DNA is TAGGCTAA, what is the corresponding sequence of bases in mRNA?
A) ATCCGATT B) CGAAUCGG C) TAGGCTAA D) AATCGGAT E) AUCCGAUU