Ascospores from a Cross of C $\times$ D E (All Auxotrophic Markers)are Analyzed

question 48

Multiple Choice

Ascospores from a cross of c $\times$ d e (all auxotrophic markers) are analyzed.If genes c and d are linked,10 map units apart,but gene e is located on a different chromosome,what proportion of ascospores is expected to be c⁺d⁺e⁺?

• A)about 1%
• B)about 2.5%
• C)about 5%
• D)about 40%
• E)about 50%

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Definitions:

Neurotransmitters

Chemicals in the nervous system that transmit signals across a synapse from one neuron to another.

Agonists

Substances that activate receptors to produce a biological response.

Genes

Units of heredity made up of DNA that are responsible for determining the characteristics and traits passed from parents to offspring.

Positively Charged

A positively charged object has more protons than electrons, resulting in a net positive electric charge.