Which Types of Phenotypic Ratios Are Likely to Occur in Crosses

question 62

Multiple Choice

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

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

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Definitions:

Health Problems

Issues or conditions that negatively affect an individual's physical or mental well-being.

Late Adulthood

A stage in human development that typically begins at age 65 and lasts until death, characterized by retirement, physical changes, and adjustments to social roles.

Loss Of Control

A situation where an individual feels they no longer have power or command over certain behaviors or emotions, often linked to psychological conditions.

Adaptation-Level Phenomenon

A psychological principle suggesting that individuals adapt to new stimuli or changes over time, altering their standard of normality.