Biology, 24.09.2020 15:01 taridunkley724
Suppose that some cells are grown in culture in the presence of radioactive nucleotides for many generations so that both strands of every DNA molecule include radioactive nucleotides. The cells are then harvested and placed in new medium with nucleotides that are not radioactive so that newly synthesized DNA strands will not be radioactive. What proportion of DNA molecules will contain radioactivity after 2 rounds of replication, assuming semiconservative replication?
Answers: 1
Biology, 21.06.2019 20:00
Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.
Answers: 1
Biology, 22.06.2019 02:00
Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel
Answers: 3
Biology, 22.06.2019 06:20
The science for classifying and naming organisms is known as
Answers: 2
Suppose that some cells are grown in culture in the presence of radioactive nucleotides for many gen...
Engineering, 19.07.2019 03:20
Computers and Technology, 19.07.2019 03:20
Medicine, 19.07.2019 03:20
Computers and Technology, 19.07.2019 03:20
Mathematics, 19.07.2019 03:20
Computers and Technology, 19.07.2019 03:20
Computers and Technology, 19.07.2019 03:20
Computers and Technology, 19.07.2019 03:20