Biology, 13.09.2019 04:20 hockeystar0033
E. coli cells grown on 15n medium are transferred to 14n medium and allowed to grow for two more generations (two rounds of dna replication). dna extracted from these cells is centrifuged. what density distribution of dna would you expect in this experiment?
a. one high-density and one low-density band
b. one intermediate-density band
c. one high-density and one intermediate-density band
d. one low-density and one intermediate-density band
Answers: 3
Biology, 22.06.2019 00:50
Akrabby blind whale has married pearl who has normal vision. oneof their two sons is also colorblind. what arr the genotypes of the parents?
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Biology, 22.06.2019 02:00
The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except
Answers: 1
Biology, 22.06.2019 05:50
Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi
Answers: 2
E. coli cells grown on 15n medium are transferred to 14n medium and allowed to grow for two more gen...
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