PLEASE HELP. Will select brainliest! Which major biomolecule is made unstable by the presence of ions such as sodium and magnesium, even though both are necessary for cell function? (Select 1) Group of answer choices

Nucleic acids

Amino acids

Lipids (fatty acids)

Carbohydrates

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: