A strand of DNA in a skin cell contains the bases: A-T-G-C-C-A-T-C-G-G-T-A After the cell is exposed to ultraviolet light, the strand contains the bases: A-T-G-G-C-C-A-T-C-G-G-T-A Which statement describes the result of this exposure?a. A new base has been inserted. b. A base has been deleted. c. One base has been substituted for another. d. There have been no changes in the bases.
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Biology, 21.06.2019 17:00
The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.
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Biology, 22.06.2019 04:00
What amino acid is coded for by this sequence after the mutation
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Biology, 22.06.2019 11:20
How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.
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Biology, 22.06.2019 15:30
Kate is studying the transformation from unicellular to multicellular organisms. which metaphor is the most appropriate to apply to the map of the timeline.
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A strand of DNA in a skin cell contains the bases: A-T-G-C-C-A-T-C-G-G-T-A After the cell is exposed...
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