Which Types of Phenotypic Ratios Are Likely to Occur in Crosses

question 19

Multiple Choice

Which types of phenotypic ratios are likely to occur in crosses when dealing with three gene pairs for which all the genotypic combinations are of equal viability?

• A) 27:9:9:9:3:3:3:1
• B) 1:2:1, 3:1
• C) 1:4:6:4:1, 1:1:1:1
• D) 12:3:1, 9:7
• E) 2:3, 1:2

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Definitions:

Constant Routine

A fixed, repetitive pattern of activities or behaviors that is maintained over time.

Novelty

The quality of being new, original, or unusual.

Relational Stages

The various phases that relationships go through, from initial formation and intensification to possible decline and dissolution.

Progressing Speed

The rate at which something moves forward or develops.