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

Overview of Human Genetics

Anatomy & Physiology

29. Heredity

Overview of Human Genetics

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Multiple Choice

If an individual is homozygous for a particular trait:

Each parent contributed a different allele for that trait.

One parent contributed two different alleles for that trait.

Each parent contributed the same allele for that trait.

One parent contributed two copies of the same allele for that trait.

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Verified step by step guidance

Understand the term 'homozygous': In genetics, being homozygous means that an individual has two identical alleles for a particular gene. Alleles are different forms of a gene, and they can be dominant or recessive.

Recognize how alleles are inherited: Each parent contributes one allele for a given gene to their offspring. If an individual is homozygous, it means both alleles inherited from the parents are the same.

Analyze the options provided: The correct answer must align with the definition of homozygous. For homozygous individuals, each parent must have contributed the same allele for the trait in question.

Eliminate incorrect options: For example, the option stating 'Each parent contributed a different allele for that trait' describes heterozygous inheritance, not homozygous. Similarly, 'One parent contributed two different alleles for that trait' is not possible because each parent contributes only one allele per gene.

Select the correct answer: Based on the definition of homozygous, the correct answer is 'Each parent contributed the same allele for that trait.' This ensures the individual has two identical alleles for the trait.