Describe the general relationship that may exist between mutations and cancer

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Control of the cell cycle is dependent on a variety of gene-produced proteins such as kinases and cyclins as well as other related factors. Mutations in genes that encode these proteins may disrupt normal cell-cycle control. The G1 checkpoint is altered in some forms of cancer, and mutant cyclins have been shown to be related to a gene product that is overexpressed in some forms of leukemia. Nonmutant genes often suppress the formation of cancer by exerting control over the cell cycle. When mutated, such control may be lost.

Biology & Microbiology

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Antibiotics can destroy bacteria because they interfere with the production of ____________

in the bacterial cell.

a. cell walls b. DNA c. ribosomes d. More than one of these answers is correct

Biology & Microbiology

Please list the sequential levels of protein structure:

What will be an ideal response?

Biology & Microbiology

In the first experiment to test the pedometer hypothesis in Sahara desert ants, which results did the researchers obtain?

A. Ants with normal legs walked past the home nest, ants with stumps found the nest, ants with stilts were short of the nest B. Ants with stilts walked past the home nest, ants with normal legs found the nest, ants with stumps were short of the nest C. Ants with stumps walked past the home nest, ants with normal legs found the nest, ants with stilts were short of the nest D. None of the above

Biology & Microbiology

Pyruvate can be converted to lactate instead of going to the preparatory reaction. Why does this occur?

What will be an ideal response?

Biology & Microbiology