Which of the Following Mechanisms Is Used to Coordinate the Expression

question 23

Multiple Choice

Which of the following mechanisms is used to coordinate the expression of multiple, related genes in eukaryotic cells?

• A) A specific combination of control elements in each gene's enhancer coordinates the simultaneous activation of the genes.
• B) The genes share a single common enhancer, which allows appropriate activators to turn on their transcription at the same time.
• C) The genes are organized into large operons, allowing them to be transcribed as a single unit.
• D) A single repressor is able to turn off several related genes.
• E) Environmental signals enter the cell and bind directly to promoters.

Recognize the role of patient assessment in preventing and managing pressure ulcers.

Understand the specific needs of patients with varying degrees of mobility and health conditions in relation to support surfaces.

Identify the limitations and contraindications of different types of support surfaces.

Explain the importance of environmental and structural considerations when implementing specialized support surfaces in patient care.

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Definitions:

Angraecum

A genus of orchids, primarily found in Madagascar, known for their elongated spur and nocturnal fragrance.

Polydactylism

A genetic variation resulting in more than the usual number of fingers or toes on the hands or feet, respectively.

Tay-Sachs Disease

A genetic disorder that destroys nerve cells in the brain and spinal cord progressively due to the absence of a vital enzyme, leading to severe neurological disability and death.

Genetic Drift

Refers to the random fluctuations in the frequency of alleles within a population over time, not due to natural selection.