Gene that the media described as the "bad hair day" gene is technically called frizzled (OMIM 601723), named for its well-studied counterparts in fruit flies and mice. Frizzled is inherited as an autosomal recessive trait, and the gene is on chromosome 2. A gene for "strikingly red hair," also autosomal recessive, is on chromosome 4 (OMIM 266300). Gina Rollins and Spencer Davis have boring, straight brown hair. They are amazed to discover that each has a mother (Inga and Magda) with strikingly red, frizzled hair. Their fathers, Ralph and Fred, both have boring, straight brown hair. If Gina and Spencer have children, what is the probability that each will have either trait, both traits, or neither?

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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.