Each of the following are steps in the receptor kinase signaling pathway EXCEPT ____
a. a signal molecule binds to a membrane receptor protein
b. protein kinase is activated
c. GTP donates a phosphate group to an inactive protein kinase
d. a specific protein is activated via phosphorylation
e. a cellular response is initiated
C
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Karyotype analysis ____
a. is a means of detecting and reducing mutagenic agents b. is a surgical technique that separates chromosomes that have failed to segregate properly during meiosis II c. can be used in prenatal diagnosis to detect chromosomal mutations and genetic disorders in embryos d. replaces defective alleles with normal ones e. is used in DNA analysis for paternity
In peas, Mendel found that tall plants and yellow peas are dominant. The phenotype for a pea plant
with the genotype TTyy would be: a. heterozygous. b. Ty. c. short with yellow peas. d. tall with green peas. e. tall with yellow peas
To determine whether a patient can accept a solid organ transplant from a nonrelated donor, which of the following tests would be used to verify compatibility after an HLA match is determined?
A. ABO blood typing B. CDC assay C. HLA antibody screen D. RAST test
The process by which water is "pulled" up through the xylem columns of plants as it evaporates out of the leaves is called
A. transpiration. B. anhydration. C. stomatization. D. osmosis. E. respiration.