One plasma cell will secrete antibodies of various classes, but the antibodies will all have the same specificity.
Answer the following statement true (T) or false (F)
True
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Oral bacteria on the tooth surface
A. use fimbriae and slime layers to adhere. B. develop a biofilm. C. metabolize sucrose, produce sticky glucans, and form plaque. D. All of the above are correct.
Angiogenesis contributes to carcinogenesis because it
A. allows tumor cells to invade underlying tissues. B. causes additional mutations to occur in tumor cells. C. allows tumor cells to spread to other parts of the body. D. causes blood vessels to grow into the tumor. E. causes apoptosis in tumor cells.
Assume that a Chi-square test was conducted to test the goodness of fit to a 3:1 ratio and that a Chi-square value of 2.62 was obtained
Should the null hypothesis be accepted? How many degrees of freedom would be associated with this test of significance?
Which is defined by the presence of two or more different alleles in a population for a given locus?
a. a gene pool b. heterozygosity c. polygenic stasis d. genetic polymorphism e. frequency independent selection