In Meiosis,crossing-Over Refers To

question 121

Multiple Choice

In meiosis,crossing-over refers to:

• A)one type of chromosomal mutation
• B)a process whereby alleles from homologous chromosomes are exchanged
• C)a process that occurs only on the X chromosome
• D)a type of gene mutation

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Definitions:

Hearing

The sense by which sound is perceived, involving the detection of vibrations and their interpretation by the brain.

Nearsightedness

A vision condition in which close objects are seen clearly, but objects farther away appear blurred.

Retina

The light-sensitive layer of tissue at the back of the inner eye, which contains photoreceptor cells that capture light and convert it into electrical signals for the brain to interpret as images.

Nociceptors

Nociceptors are sensory receptors that respond to potentially harmful stimuli by sending nerve signals to the spinal cord and brain, which is interpreted as pain.