Molecular techniques have shown that Cyanobacteria are not present in soil.
Answer the following statement true (T) or false (F)
False
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What is the primary source of energy for nearly ALL of the earth's ecosystems?
Despite their similar appearance, in what way are Ulva structures different from leaves?
a. They are unicellular. b. They do not contain chlorophyll. c. They do not contain differentiated cells. d. They do not contain cellulose.
The COL1A1 gene in humans is responsible for producing collagens in healthy bone and cartilage. A mutation in COL1A1 is known to cause severe Osteogenesis Imperfecta, which is also known as "brittle bone disease," in which bones form irregularly and can break often, with even mild pressure and impacts. The mutation occurs as a "nonsense" mutation, dramatically shortening the proteins, occurring because the
The Human Genome Project is a multinational project that reported complete identification of more than 20,000 genes in human DNA. Growing understanding has associated "normal" and naturally variable versions of the genes, producing specific proteins for human health and cell functions. Numerous mutated versions of the genes have been associated with particular human health problems and disease, due to the types of cells where mutations occur, the specific genes affected, and the type and extent of mutation. In these cases, the structure and function of proteins is ultimately impacted. Examine these examples to apply your knowledge of mutations to the descriptions provided. A. codon that mutates causes a stop codon to occur instead of the placement of an amino acid. B. mutation is not in DNA. C. mutation does not occur in a codon. D. codon that mutates does not cause a change in the amino acid specified. E. codon that mutates causes a change in the amino acid specified.
Taste buds detect
a. light. b. atmospheric sound waves. c. chemicals in food and drink. d. movements of the head.