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ZanzabumX [31]
3 years ago
5

The "permanent" wave that your local beauty parlor offers depends critically on rearrangements in the extensive disulfide bonds

of keratin that give your hair its characteristic shape. to change the shape of your hair (that is, to give it a wave or curl), the beautician first treats your hair with a sulfhydryl reducing agent, then uses curlers or rollers to impose the desired artificial shape, and follows this by treatment with an oxidizing agent. part a what is the chemical basis of a permanent? drag the terms on the left to the appropriate blanks on the right to complete the sentences. resethelp peptide ionic disulfide amide cysteine tertiary alanine primary tyrosine hair proteins are first treated with a sulfhydryl reducing agent to break bonds and thereby destroy much of the natural structure and shape of the hair. after being set in the desired shape, the hair is treated with an oxidizing agent to allow the bonds to re-form between different groups, as determined by the positioning imposed by the curlers.
Biology
1 answer:
Vladimir [108]3 years ago
3 0
Hair proteins (peptides) are first treated with a sulfhydryl reducing agent to break disulfide bonds and thereby destroy much of the natural tertiary structure and shape of the hair. After being set in the desired shape, the hair is treated with an amide oxidizing agent to allow the disulfide bonds to re-form between different cysteine groups, as determined by the positioning imposed by the curlers. 
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Which phrase best describes a gene?
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Answer: The correct answer is 3) A segment of a DNA molecule that contains  the instructions for producing a trait in an  organism.

Gene is a segment of DNA molecule that contains instructions ( in the form of nucleotide sequences), which are required for producing a specific trait ( characteristic) of an organism.

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Thus, option 3) is the best description for a gene.

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in its second messenger role, cAMP activates enzymes called ____________, whose jobs is to regulate other enzymes by adding phos
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In its second messenger role, cAMP activates enzymes called kinases, whose job is to regulate other enzymes by adding phosphate groups to them.

<h3>What is a kinase?</h3>

A kinase is an enzyme that catalyzes the addition of phosphate group and thus regulates cell signaling.

Moreover, phosphatases are enzyme that catalyze the removal of a phosphate group in a protein.

In conclusion, in its second messenger role, cAMP activates enzymes called kinases, whose job is to regulate other enzymes by adding phosphate groups to them.

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