THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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98% of our DNA is non-coding thus, the chances of changing a gene is limited
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Telomeres prevent the loss of genes when DNA replicates
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The DNA code is protected by the complementary non-coding side of DNA
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Multiple codons code for the same amino acid
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Detailed explanation-1: -As a form of defence, organisms have evolved repair mechanisms to correct the DNA sequence following mutation. One of these mechanisms, is termed DNA mismatch repair (MMR). It corrects mutations that arise during the replication of the genome during cell division.
Detailed explanation-2: -Wear sunscreen, every single day. Exposure to ultraviolet (UV) radiation from the sun is one of most significant-and avoidable-threats to DNA. The sun’s UVA and UVB rays trigger various types of DNA damage and can lead to cell death, DNA mutations, premature aging and skin cancer.
Detailed explanation-3: -Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
Detailed explanation-4: -Mutations can be of many types, such as substitution, deletion, insertion, and translocation.