Which Statement About a Test Cross Is False

question 76

Multiple Choice

Which statement about a test cross is false?

• A) It tests whether an unknown individual is homozygous or heterozygous.
• B) The test individual is crossed with a homozygous recessive individual.
• C) If the test individual is heterozygous,the progeny will have a 1:1 ratio.
• D) If the test individual is homozygous,the progeny will have a 3:1 ratio.
• E) Test cross results are consistent with Mendel's model of inheritance for unlinked genes.

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Definitions:

Dichlorodifluoromethane

A chemical compound once widely used as a refrigerant and propellant but now recognized for its ozone-depleting properties.

Strontonium

A chemical element with the symbol Sr, known for its use in fireworks and as a component in certain alloys.

Oxide Ion

An ion consisting of oxygen and carrying a negative two charge, represented as O^2-.

Helium Ion

A positively charged helium atom, often resulting from the removal of one electron from the neutral atom.