In Cattle, Roan Coat Color (Mixed Red and White Hairs)

question 16

Multiple Choice

In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (CᴿCᵂ) offspring of red (CᴿCᴿ) and white (CᵂCᵂ) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red:2 roan:1 white?

• A) red × white
• B) roan × roan
• C) white × roan
• D) red × roan

Comprehend the relationship between development stages and cognitive competencies in early childhood.

Recognize the recommended sleep duration for young children and its importance.

Identify factors influencing food security and its relation to child health.

Describe the influence of brain development and cultural activities on early childhood development.

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Definitions:

Inflammation

A biological response to harmful stimuli, marked by redness, swelling, pain, and sometimes loss of function.

Cytotoxic T Cells

A type of white blood cell that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.

Thoracic Duct

The largest lymphatic vessel in the body, responsible for transporting lymph and chyle from the lymphatic system into the bloodstream.

Subclavian Vein

A large vein in the upper chest, under the collarbone, that receives blood from the arm and parts of the neck and chest.