The substance that is coded for by a length of DNA is base. The correct option is A.
<h3>What is a base?</h3>
Nucleobases, also known as nitrogenous bases or simply bases, are nitrogen-containing biological compounds that form nucleosides, which are then components of nucleotides, all of which are the basic building blocks of nucleic acids.
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The substance that is coded for by a length of DNA is base.
Thus, the correct option is A.
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<span>Lactic acidosis fermentation occurs in muscle cells.</span>
The concept of the struggle for existence<span> concerns the competition or battle for resources needed to live. It can refer to human society, or to organisms in nature. The concept is ancient, and the term </span>struggle for existence<span> was in use by the end of the 18th century. From the 17th century onwards the concept was associated with a population exceeding resources.
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Answer:
CO2 and H2O are the reactants in the given reaction
Explanation:
The reaction that is written in the question is the general equation of photosynthesis.
In this reaction the carbon di oxide reacts with water to form glucose ,oxygen and water.The overall reaction is given below
6CO2+12H2O= C6H12O6+6O2+6H2O
carbon di oxide(CO2) and water(H2O) act as reactant in the above reaction.