Sickle cell anemia and phenyl ketonuria are well known examples of:
Correct answer: A. Point mutations
- A. Point mutations
- B. Chromosomal aberrations
- C. Chromosomal mutations
- D. Non-disjunction
Explanation
These genetic disorders are consequence of a change in the nucleotide sequence of DNA which results in a change in amino acid sequence of proteins and as a result the function of that associated with that protein is stopped.
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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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More Inheritance questions
Modern industrial societies are exposed to point mutations mainly by:
If the alterations involve only one or a few base pairs in the coding sequence they are called:
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In humans division of chromosomes is as under:
The human female differs from human male in having: