Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

29. Heredity

Patterns of Inheritance

Anatomy & Physiology

29. Heredity

Patterns of Inheritance

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Multiple Choice

Codominant alleles are present in __________.

polygene inheritance

sex-linked inheritance

multiple-allele inheritance

dominant-recessive inheritance

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Verified step by step guidance

Understand the concept of codominant alleles: Codominance occurs when two different alleles at a locus are both fully expressed in a heterozygous individual, resulting in a phenotype that shows both traits equally.

Identify the types of inheritance patterns: The problem mentions polygene inheritance, sex-linked inheritance, multiple-allele inheritance, and dominant-recessive inheritance.

Review multiple-allele inheritance: This is a type of inheritance where more than two alleles exist for a particular gene, but an individual can only have two of these alleles. Codominance can occur in this context when two alleles are equally expressed.

Consider examples of codominance: A classic example is the ABO blood group system in humans, where both A and B alleles are codominant, resulting in the AB blood type.

Conclude that codominant alleles are present in multiple-allele inheritance, as this is the context where codominance is typically observed, allowing both alleles to be expressed equally in the phenotype.