The Genotype of an Organism That Expresses a Dominant Trait

question 144

Multiple Choice

The genotype of an organism that expresses a dominant trait can be determined by

• A) crossing the organism with a homozygous recessive organism.
• B) crossing the organism with a heterozygous dominant organism.
• C) crossing the organism with a homozygous dominant organism.
• D) observing the phenotype of the progeny from any cross.
• E) observing the genotype of the progeny from any cross.

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Definitions:

Shale

A fine-grained sedimentary rock composed of mud that splits easily into layers, often used in the production of oil and natural gas.

Sandstone

A sedimentary rock consisting of sand-sized minerals or rock grains, compacted and often cemented together over time.

Limestone

A sedimentary rock composed primarily of calcium carbonate, often formed from marine organisms' shells and skeletons.

Granite

A rough-textured igneous rock that predominantly contains quartz, feldspar, and mica, frequently used in the construction industry.