The Exon Theory of Genes States That

question 17

Multiple Choice

The exon theory of genes states that

• A) genomes consist solely of exons.
• B) introns are deleterious and are purged from the genome.
• C) introns lead to recombination errors.
• D) many current genes arose through the rearrangement of exons into new combinations.

Describe the processes involved in fertilization and early developmental stages.

Understand the role and function of the extraembryonic membranes in development.

Recognize the patterns of cleavage and their significance in embryogenesis.

Explain the process and significance of gastrulation in embryonic development.

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Definitions:

Antidepressant Medication

Medicines designed to alleviate symptoms of depression by adjusting chemical imbalances of neurotransmitters in the brain.

Cognitive-Behavioral Therapy

A form of psychological treatment that addresses dysfunctional emotions, maladaptive behaviors, and cognitive processes through a number of goal-oriented, explicit systematic procedures.

Drug Treatments

The use of medications to manage or cure illnesses, alleviate symptoms, or modify biological processes.

Electroconvulsive Shock Therapy

An approach to mental disorder treatment that involves triggering seizures electrically in affected patients to help lessen their symptoms.