How do lipid rafts contribute to the efficiency of biochemical pathways in which multiple enzymes and other proteins are involved?

What will be an ideal response?


Model Short Answer: Answers will vary

Biology & Microbiology

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SMAD4 is a tumor suppressor gene located on chromosome 18 that is known to be homozygously deleted in human lung cancer

If you were to perform comparative genomic hybridization with tissue from a lung cancer patient with a homozygous negative SMAD4 tumor, what ratio of green to red fluorescence would you expect? A. A ratio of 1 on all of chromosome 18 B. A ratio of 2 on the part of chromosome 18 containing the SMAD4 gene, with a value of 1 on the remainder of the chromosome. C. A ratio of 0 on all of chromosome 18 D. A ratio of 0 on the part of chromosome 18 containing the SMAD4 gene, with a value of 1 on the remainder of the chromosome E. A ratio of 1 on the part of chromosome 18 containing the SMAD4 gene, with a value of 0 on the remainder of the chromosome. F. A ratio of 0.5 on the part of chromosome 18 containing the SMAD gene, with a value of 1 on the remainder of the chromosome.

Biology & Microbiology

NADPH contains the pentose sugar ________ and the nitrogenous base ________.

A) glucose; thymine B) deoxyribose; cytosine C) deoxyribose; nicotinamide D) ribose; adenine E) ribose; nicotinamide

Biology & Microbiology

The presence-absence test is a modification of which test?

A. Membrane filter B. Virus plaque assay C. MPN D. None of these choices are correct. 

Biology & Microbiology

Compare and contrast the advantages and disadvantages of gas exchange in terrestrial and aquatic

environments. What will be an ideal response?

Biology & Microbiology