Biologists have found that the genetic code is universal, that the same codons code for the same amino acids in almost all living things. Explain how this can be considered evidence for evolution.
What will be an ideal response?
It stands to reason that if all organisms share a common link in the distant past, that they would retain the same biochemical relationships developed in that early ancestor. Organisms sharing the same ancestor would use the same relationships.
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Nutrient transport requires energy because the nutrients must be transported into the cell against a concentration gradient. The energy required for nutrient transport is supplied by
A) ATP. B) the proton motive force. C) phosphoenol pyruvate. D) ATP, the proton motive force, or phosphoenol pyruvate.
Determine the order of the processes occurring as a protein travels through the endomembrane system.
A. Pinching of vesicle into the cytoplasm. B. Movement through the cis, medial and trans regions. C. Transportation to the Golgi. D. Attachment of protein to cargo receptors. E. Release of the protein out of the cell. F. Translation of protein into the Rough ER.
A food web is more complicated than a food chain
Indicate whether the statement is true or false
Cinnabar eyes is a sex-linked, recessive characteristic in fruit flies. If a female having cinnabar eyes is crossed with a wild-type male, what percentage of the F1 males will have cinnabar eyes?
A) 0% B) 25% C) 50% D) 100%