Which, If Any, of the Following Descriptions Is False

question 37

Multiple Choice

Which, if any, of the following descriptions is false?

• A) Zinc fingers are elements of protein secondary structure in which the polypeptide chain folds back upon itself after co-ordination of a Zn²⁺ ion with selected amino acids, often a pair of cysteines and a pair of histidines.
• B) Zinc finger nucleases are natural proteins containing a sequence of zinc fingers that can bind to specific sequences in DNA.
• C) After zinc finger nucleases bind to both DNA strands at a specific DNA sequence they attract cellular DNA cleavage enzymes, inducing them to make a double-stranded break at just that one position in the genome.
• D) The CRISPR-Cas system also allows genome editing but in this case the target DNA sequences are recognized by guide RNA sequences rather than proteins.

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Definitions:

Discriminatory Practices

Actions or policies that treat people unequally or unfairly based on characteristics such as race, gender, age, or sexual orientation.

Black Housing

The residential spaces and communities predominantly occupied by African Americans, often marked by historical and systemic disparities.

Redlining

A discriminatory practice by banks and other financial institutions that refuse or limit loans, mortgages, insurance, etc., within specific geographic areas, often based on race.

Postwar Period

The era immediately following the end of a war, often marked by reconstruction, realignment of political powers, and societal changes.