What Is the Significance of Multiple Alleles

question 48

Multiple Choice

What is the significance of multiple alleles?

• A)They make it possible for one person to have more than two alleles for a gene.
• B)They are the reason one gene can affect more than one character.
• C)They are the reason the environment can affect characters.
• D)They allow for a range of traits in the population.

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Definitions:

Alternation of Generations

A reproductive cycle of certain plants and algae that alternates between a sexual phase (gametophyte) and an asexual phase (sporophyte).

Sporophyte

The diploid, spore-producing phase in the life cycle of plants that undergo alternation of generations.

Gametophyte

A stage in the life cycle of plants and algae that is haploid and produces gametes.

Pollen Tube

A long, slender growth from a pollen grain that penetrates the ovule, allowing the sperm to fertilize the egg in plants.