In most cases, protein kinases ____
a. add phosphate groups to proteins
b. bind cGMP
c. stimulate adenylyl cyclase
d. polymerize amino acids
e. hydrolyze proteins
A
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Cells do not catabolize carbon dioxide because
A) its double bonds are too stable to be broken. B) CO2 has fewer bonding electrons than other organic compounds. C) CO2 is already completely reduced. D) CO2 is already completely oxidized. E) the molecule has too few atoms.
Do you feel there is any harm in eating genetically modified crops?
What will be an ideal response?
How do mineral ions get into the xylem cells of a plant root by way of the intracellular route?
A) They travel between root cells to the xylem and then enter a xylem vessel. B) They are actively taken in to the xylem of root hairs. C) They are taken up by root hair cells and transferred from cell to cell via plasmodesmata. D) They move in solution through cell walls of the endodermis.
Put the steps of creating a DNA fingerprint in the correct chronological order.
A) Amplify each STR region, sort the fragments by size, and determine the size of the fragments. B) Sort the fragments by size, use PCR to amplify the fragments, and determine the genotype of each fragment. C) Determine the genotype of each STR allele, amplify the STR region, and sort the alleles by size. D) Use PCR to amplify each STR region, determine the size of each fragment, and sort the fragments by size. E) Determine the genotype of each STR allele, sort each allele by size, and amplify the STR region.