Asked by Kassandra Victoria on Jun 08, 2024
Verified
List and describe two birth defects and diseases that are a result of dominant/recessive genes,sex-linked inheritance,and gene mutations.
Dominant/Recessive Genes
Genetic patterns where dominant genes override the characteristics of recessive genes, determining certain traits.
Sex-Linked Inheritance
Pattern of inheritance in which certain characteristics carried on the X chromosome inherited from the mother are transmitted differently to her male and female offspring.
Gene Mutations
Permanent alterations in the DNA sequence of a gene, potentially affecting an organism's traits or health.
- Recognize and describe birth defects and diseases resulting from different genetic inheritance patterns.
Verified Answer
1. Cystic Fibrosis: Cystic fibrosis is a genetic disorder that is caused by a recessive gene mutation. This means that a person must inherit two copies of the mutated gene, one from each parent, in order to develop the disease. Cystic fibrosis affects the lungs and digestive system, causing thick, sticky mucus to build up and leading to respiratory and digestive problems.
2. Hemophilia: Hemophilia is a genetic disorder that is caused by a sex-linked inheritance pattern, specifically the X-linked recessive gene. This means that the gene for hemophilia is located on the X chromosome, and since males have only one X chromosome, they are more likely to develop the disease. Hemophilia is a blood clotting disorder, where the blood does not clot properly, leading to excessive bleeding and bruising.
These examples demonstrate how different genetic inheritance patterns, such as dominant/recessive genes, sex-linked inheritance, and gene mutations, can result in various birth defects and diseases.
Learning Objectives
- Recognize and describe birth defects and diseases resulting from different genetic inheritance patterns.
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