Which antibodies will be in the serum of a person with blood type B, Rh+?
A) anti-A, anti-B, anti-Rh
B) anti-A, anti-Rh
C) anti-A
D) anti-B, anti-Rh
E) anti-B
C
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Two snapdragons heterozygous for alleles that encode red and white flower color are crossed. If the red and white
alleles show incomplete dominance, what will be the ratios of phenotypes in the offspring?
a. 100% pink b. 100% red c. 50% white, 50% red d. 25% red, 50% pink, 25% white e. 25% pink, 50% white, 25% red
What would be the result of an error in anaphase that failed to separate a pair of sister chromatids?
A) One cell would have an extra chromosome, and one cell would lack a chromosome. B) The nuclear envelope would not be able to break down. C) One cell would have an extra gene, and one cell would be missing one gene. D) Cytokinesis would not be able to take place, and the cells would not divide.
What is the term for the cells that are not neural, but support and protect neurons in the nervous system?
a. glial cells b. Peyer's cells c. ganglion cells d. Langerhans cells e. dendritic cells
Antigen presenting cells
A. include macrophages. B. engulf and modify antigen to be more immunogenic. C. include dendritic cells. D. hold and present processed antigen on their cell membrane surface. E. All of the choices are correct.