Its cause is genetic communication failure at molecular level:
Correct answer: B. Hypophosphatemic rickets
- A. Dietary rickets
- B. Hypophosphatemic rickets
- C. Osteomalacia
- D. Weakness of bones
Explanation
Vitamin D enhances mineral uptake by increasing the absorption of calcium and phosphorus from the digestive tract. If a person becomes deficient in vitamin D or becomes insensitive (resistant) against vitamin D his mineral uptake will be dangerously reduced bones will become weak and he/she will suffer from rickets.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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