All cells from an individual have the genes but they are expressed differently. (Lesson 1.02) You can turn on and turn off to make different proteins.
genes are active at different times in your life
Gene expression allows cells to
Gene expression is regulated at many points along the pathway of ___ ______ (Lesson 1.04, 1.05)
: DNA mRNA
: mRNA protein
Final formation of a finished piece of protein
Controlled gene expression allows cells to and organisms to develop. (Lesson 1.04, 1.05)
technology (Lesson 1.06)
Genes from one organism are and the genes of another organism
The new organism makes the from the first organism

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

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.