When Crossing an Organism That Is Homozygous Recessive for a Single

question 46

Multiple Choice

When crossing an organism that is homozygous recessive for a single trait with a heterozygote, what is the chance of producing an offspring with the homozygous recessive phenotype?

• A) 0%
• B) 25%
• C) 50%
• D) 75%
• E) 100%

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Definitions:

Melanin Synthesis

The biological process by which the skin, eyes, and hair gain their color, involving the production of the pigment melanin by melanocytes.

Cancer Risk

The probability of developing cancer, influenced by genetic, environmental, and lifestyle factors.

Partial Thickness Burns

Burns that affect the epidermis and part of the dermis layer of skin, causing blistering and more severe pain.

Second-Degree Burns

Burns that affect both the epidermis and dermis layers of the skin, causing pain, swelling, blistering, and redness.