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

Marfan syndrome is inherited in an autosomal dominant pattern. Which of the following is true?

An individual with one affected parent has a 50% chance of inheriting the disorder.

The disorder is more common in males than females.

Both parents must carry the gene for the disorder to be passed on.

The disorder skips generations due to carriers.

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Verified step by step guidance

Understand the inheritance pattern: Marfan syndrome is inherited in an autosomal dominant pattern, meaning only one copy of the altered gene is needed for an individual to be affected.

Recognize the implications of autosomal dominant inheritance: If one parent has the disorder, they have one affected allele and one normal allele. The other parent has two normal alleles.

Calculate the probability of inheritance: When an affected parent (heterozygous) and an unaffected parent (homozygous normal) have a child, there is a 50% chance the child will inherit the affected allele.

Clarify misconceptions: Autosomal dominant disorders do not skip generations because carriers are affected. Both parents do not need to carry the gene for the disorder to be passed on.

Address gender prevalence: Autosomal dominant disorders like Marfan syndrome are not typically more common in one gender over another, as the gene is located on one of the autosomes, not sex chromosomes.