The reason that deciduous leaves turn bright colors of red and yellow in the fall is

What will be an ideal response?


when chlorophyll breaks down, the remaining pigments other than green will show through

Biology & Microbiology

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Why does Halobacterium pump large quantities of K+ cations into its cytoplasm from the environment? What would happen if Halobacterium did not do this?

What will be an ideal response?

Biology & Microbiology

C. gel electrophoresis A small amount of DNA is collected from a crime scene. However, the amount of DNA collected is insufficient to perform the necessary experiments to link a suspect to the crime. What method could be utilized to increase the amount of DNA?

A. Southern blotting B. gel electrophoresis C. polymerase chain reaction (PCR) D. colony hybridization E. DNA sequencing

Biology & Microbiology

MAPKs are activated by

A) methylation. B) microtubules. C) membranes. D) mitogens. E) methionine.

Biology & Microbiology

Where does the initiator protein bind DNA at the start of replication?

A) At a replication fork B) At an origin of replication C) At any AT-rich region D) At a promoter region E) At a start codon

Biology & Microbiology