What are the similarities between DNA and RNA molecules? Both are linear nucleotide molecules with nitrogenous bases perpendicular to the sugar-phosphate backbone.
Both are double stranded molecules with nitrogenous bases and ribose sugar backbone.
Both are linear nucleotides with the same nitrogenous bases.
Both are linear single stranded molecules and contain sugar-phosphate backbone.

Both DNA and RNA are made up of monomers called nucleotides.

Both RNA and DNA both have 3 nitrogenous bases: Adenine, Cytosine and Guanine.

They are both necessary for the cell to produce proteins.

DNA and RNA both contain pentose sugars.

DNA makes mRNA which then is translated into protein.

Explanation:

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the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.