Ten Plants of the Same Genotype Are Planted in a Large

question 58

Multiple Choice

Ten plants of the same genotype are planted in a large flower garden. Later that year, some of the ten plants have blue flowers and others have pink flowers. This can be best explained by which of the following statements?

• A) multiple alleles are involved in color determining flower color
• B) the allele for blue hydrangea is completely dominant over the allele for pink hydrangea
• C) the alleles are codominant
• D) environmental factors such as soil pH affect the phenotype

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Definitions:

Horizontal Gene Transfer

The movement of genetic material between unicellular and/or multicellular organisms through mechanisms other than traditional reproduction.

Recombination

The process by which pieces of DNA are broken and recombined to produce new combinations of alleles.

Genetic Variation

The diversity in gene frequencies within a population, which is the basis for adaptation and evolution.

Evade

The act of escaping or avoiding something, often by cunning or skill.