What plant group includes almost all modern crop plants?
A) gymnosperms
B) annual plants
C) dicots
D) legumes
B
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Early in mitosis, chromatin condenses. Which process takes place more easily as a result?
a. disappearance of the nuclear envelope b. replication of DNA c. orderly distribution of DNA into the two new nuclei d. formation of the mitotic spindle e. disintegration of nucleoli
The transformation of normal cells into cancerous cells is called ____
a. carcinogenesis b. cancerogenesis c. transcription d. retinoblastoma e. BRCA1 activation
If the PO2 in the alveolus is 80 mm Hg, will O2 diffuse, and if so, in what direction?
A.) O2 will diffuse from the blood to the alveolus B.) O2 will diffuse from the alveolus to the blood C.) O2 will not diffuse
Why have scientists inserted the human insulin gene into the genome of E. coli bacteria?
A) A person who is unable to produce insulin can be cured if infected by a bacterium carrying the human insulin gene. B) Bacteria express the human insulin gene and produce large quantities of the insulin protein, which is sold pharmaceutically. C) Insertion of the human insulin gene into E. coli causes the cells to rupture, thereby controlling and reducing bacterial infections. D) The recombinant bacteria can be used in gene therapy of individuals who have type 1 diabetes. E) The engineered bacteria are used by the food industry as a supplement that improves the absorption of glucose