Biology, 17.07.2019 01:10 clairebear66
Aplasmid contains the gene for tetracycline resistance and a lacz gene that has a restriction site in it. foreign dna has the same restriction site at its ends. a mixture of foreign dna and plasmid dna cut with the same restriction enzyme is used to transform host bacteria that are then grown on medium with tetracycline and x-gal. colonies that are producing β-galactosidase and are tetracycline resistant are carrying
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Biology, 21.06.2019 15:00, katelynwest1
Although there are a limited number of amino acids many different types of proteins exist because..
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Biology, 22.06.2019 00:10, rameseshajj
Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase
Answers: 1
Biology, 22.06.2019 05:10, Jakeandjenn21
7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?
Answers: 1
Aplasmid contains the gene for tetracycline resistance and a lacz gene that has a restriction site i...
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