stomatal pores
What will be an ideal response?
are on the underside of the leaf and allow gases in and out.
CO2 enters and is absorbed into surrounding cells
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Which cell can transfer the most DNA?
A. B cell B. R cell C. F+ cell D. F- cell E. Hfr cell
Determinate cleavage takes place in __________ and is characterized by a pattern of development
where the ultimate fate of each cell is __________. a. protostomes; not fixed until late in the developmental process b. protostomes; fixed early in the developmental process c. deuterostomes; not fixed until late in the developmental process d. deuterostomes; fixed early in the developmental process e. coelomates; fixed early in the developmental process
What is the function of the structure labeled as B in the accompanying figure?
a. To provide locomotion b. To prevent phagocytosis c. To carry genetic information d. To transmit DNA between bacteria e. To adhere to surfaces or other bacteria
What is meant by the description "antiparallel" regarding the strands that make up DNA?
A) The twisting nature of DNA creates nonparallel strands. B) The 5' to 3' direction of one strand runs counter to the to direction of the other strand. C) Base pairings create unequal spacing between the two DNA strands. D) One strand contains only purines and the other contains only pyrimidines.