In a Dihybrid Cross Where Both Parents Are Heterozygous, the Phenotypic

question 13

Multiple Choice

In a dihybrid cross where both parents are heterozygous, the phenotypic ratio is

• A) 1:2:1.
• B) 9:3:3:1.
• C) 1:1:1.
• D) 3:1.
• E) 1:1:1:1.

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Definitions:

Histology

The study of the microscopic anatomy of cells and tissues of plants and animals.

Surface Anatomy

The study of external anatomical features without dissection, facilitating the identification of muscles, bones, and organs beneath the skin.

Histology

The examination of tissues and organs at the microscopic level to understand their structure.

Tissue Specimen

A sample of tissue taken for medical examination or study to understand diseases or conditions.