Part of Gregor Mendel's hypotheses of inheritance proposed that when two contrasting traits occur together, one them may be completely expressed, while the other may have no observable effect on the organisms appearance. He called the expressed trait dominant and the unexpressed trait recessive. In his genetic experiments, mendel studied seven contrasting traits of peas. One of the traits he studied was the trait for seed shape--wrinkled and round. In an experiment to determine which form of this trait was dominant, Mendel performed the following experiment

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

explanation:

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1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.