An atom's atomic mass can be calculated by adding the number of protons and electrons.
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The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

The transport tubes for food coming down the plants are called?

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?