In Which Kind of Cross Would You Expect to Find

question 40

Multiple Choice

In which kind of cross would you expect to find a phenotypic ratio of 3:1 among the F₂ offspring?

• A)monohybrid cross
• B)dihybrid cross
• C)test cross
• D)homozygous recessive *homozygous dominant
• E)homozygous dominant * heterozygous

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Definitions:

Negative Pleural Pressure

The subatmospheric pressure in the pleural cavity that helps keep the lungs inflated.

Surfactant

A substance that tends to reduce the surface tension of a liquid in which it is dissolved, significant in the lungs for preventing alveolar collapse.

Intra-Alveolar Pressure

The pressure within the alveoli of the lungs, critical in the mechanics of breathing and the exchange of gases.

Alveolar Pressure

The pressure within the alveoli, the tiny air sacs in the lungs, which is crucial for the process of breathing and gas exchange.