Epigenetics

1. Each of our _______ consists of tightly coiled DNA.

• nucleotides

• amino acids

• proteins

• chromosomes

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1. Genes regulate protein synthesis by

• coding for the arrangement of ribosomes on DNA molecules

• specifying which amino acids will be joined together, and in what order.

• regulating the influx of ions like sodium and potassium, which code for proteins.

• setting the cell’s biological clock and controlling how and when a cell divides.

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The fusion of your father’s sperm and your mother’s egg is referred to as

• epigenetics

• gene expression

• fertilization

• spermatization

Even though your body changes and you develop new physical and behavioral characteristics, your _______ never changes.

• archetype

• phenotype

• appearance

• genotype

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1. How do gene mutations contribute to evolution?

• Beneficial mutations are passed on to several members of a generation, quickly taking hold in a population.

• Unfavorable mutations have a more significant effect on genes than do favorable mutations, so they are spread through the population.

• Natural selection favors beneficial mutations, so they survive and are passed on to future generations.

• Beneficial and unfavorable mutations take hold in the population equally over numerous generations.

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The process by which a cell directs a gene to make a certain protein is called

• DNA Extraxtion

• genetic modification

• gene expression

• chromosome assembly

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1. Epigenetics is most concerned with

• changes in a person’s genotype resulting from environmental influences.

• the expression of a particular gene as influenced by external inputs.

• environmental influences on gene expression over experiential influences.

• the heritability of genotypes that have been altered over multiple generations.

1. What is “stress memory”?

• A few harmful of alleles affect the nervous system.

• The cell the does not survive long enough to pass on the gene.

• A faster response to a familiar stimuli due to previous experience

• When an organism disregards stressful situations.

What does methyl do to gene expression

• allows genes to be expressed by loosening the reading code

• inhibits reading of a specific gene code by “tagging” to the CpG Island

• activates DNA to be read.

• activates cell growth

How does the GFP mRNA relate to Green Florescent Protein production

• Inversely

• Exponentially

• Proportionally

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