The site at which replication of DNA starts in bacterial cells is known as the ________ of ________.
Fill in the blank(s) with the appropriate word(s).
origin, replication
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An oocyte released from a human ovary enters the oviduct as a result of _____
A) the beating action of the flagellum on the oocyte B) the force of the follicular ejection directing the oocyte into the oviduct C) the wavelike beating of cilia lining the oviduct D) movement of the oocyte through the pulsating uterus into the oviduct E) peristaltic contraction of ovarian muscles
In the studies by David Tilman of the University of Minnesota and John Downing of the University of Iowa, reported
in the journal Nature in 1994, they established and monitored 207 plots of Minnesota grasslands for seven years. During the study period, Minnesota's worst drought in 50 years occurred (1987-1988). The ecologists found that those plots with the greatest number of plant species lost ____ ground cover, as measured by dry weight, and recovered faster than species-poor plots. a. less b. more c. no detectable d. only deciduous e. detectable
Which of the following statements accurately describes the difference between aerobic and anaerobic respiration?
a. anaerobic respiration uses oxygen as the final electron acceptor, and aerobic respiration uses either an inorganic molecule, such as nitrate ions or sulfate ions, or an organic molecule, such as an acid or alcohol b. aerobic respiration uses O2 as the final electron acceptor, whereas anaerobic respiration uses H2O c. aerobic respiration uses oxygen as the final electron acceptor, and anaerobic respiration uses either an inorganic molecule, such as nitrate ions or sulfate ions, or an organic molecule, such as an acid or alcohol d. anaerobic respiration uses an organic molecule as the final electron acceptor, and aerobic respiration uses an inorganic molecule as the final electron acceptor
When a heterozygote reproduces with a heterozygote, the phenotypic ratio is
What will be an ideal response?