All of the following occur during inflammation. What is the first step?
A) diapedesis
B) margination
C) phagocyte migration
D) repair
E) vasodilation
E
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Which of the following is one of two or more gene variants that determine a particular trait for a characteristic?
a. allele b. karyotype c. euploid d. aneuploid
Which of the following is false regarding water's specific heat?
A) The specific heat of water is 1.0 calorie per gram. B) Heat applied to water must initially break a number of hydrogen bonds. C) Water's high specific heat has a temperature-buffering effect. D) Water gains and loses heat more slowly than most other liquids do. E) The specific heat of water is similar to that of most liquids.
The discontinuous aspect of replication of DNA in vivo is caused by ________
A) the 5' to 3' polarity restriction B) polymerase slippage C) sister-chromatid exchanges D) trinucleotide repeats E) topoisomerases cutting the DNA in a random fashion
The only known population of a reptile species lives on an African mountain. The population is relatively large, but no close relatives of this species are known. Suppose you could stop all mutations within the population and all emigration out of this
population. Which statement best describes the probable future of this population? A) The population will decline and become extinct after a few generations because of excessive inbreeding. B) Genetic drift will cause major evolutionary changes in the population. C) Evolution will continue as natural selection acts on the genetic variability that exists in the population. D) Although the population will cease to change, it may survive for as long as the environment remains constant.