In a Dihybrid Cross Involving Two Autosomal Traits on Different

question 55

Multiple Choice

In a dihybrid cross involving two autosomal traits on different chromosomes in which the parentals are purebred for the opposite forms of both traits,how many of the offspring would be expected to be homozygous recessive for both traits?

• A) 1 out of 16
• B) 3 out of 16
• C) 6 out of 16
• D) 9 out of 16

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Definitions:

Chemical Reaction

A process that leads to the transformation of one set of chemical substances to another through the making and breaking of bonds between atoms.

Rust

A type of fungal disease that affects plants, causing reddish-brown spots, or the oxidation of iron and its alloys resulting in reddish-brown flaking coatings.

Iron

A chemical element with symbol Fe, important in biological processes and industrial applications.

Water

A transparent, tasteless, odorless, and nearly colorless chemical substance that is the principal constituent of Earth's hydrosphere and the fluids of most living organisms.