If Two Alleles Influencing the Expressed Phenotype for a Trait

question 1

Multiple Choice

If two alleles influencing the expressed phenotype for a trait are equally expressed, this is an example of

• A) polymorphism.
• B) codominance.
• C) pleiotropy.
• D) Mendelian inheritance.

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Definitions:

Fusion

Fusion is the process or result of joining two or more things together to form a single entity.

Nuclear Envelope

A double membrane that encloses the nucleus in eukaryotic cells, separating the nucleus from the cytoplasm.

Prometaphase

Stage of mitosis during which spindle microtubules attach to kinetochores of chromosomes, which begin to move toward the cell’s midplane; occurs after prophase and before metaphase.

Oogenesis

Production of female gametes (eggs) by meiosis. Compare with spermatogenesis.