Which Types of Phenotypic Ratios Are Likely to Occur in Crosses

question 52

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) 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:

Prenatal Care

Medical and healthcare provided to a pregnant woman and her developing baby before birth to ensure their health and well-being.

Neural Structures

Complex formations made up of neurons and other cells that form the nervous system, enabling communication and processing of information.

Vocal Structures

The anatomical components of the body involved in the production of sound, including the larynx, vocal cords, and other parts of the respiratory and sound-producing systems.

Testosterone

A steroid hormone primarily secreted in the testes of males and the ovaries of females, responsible for the development of male secondary sexual characteristics.