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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in order for the strands to separate for replication and transcription
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in order for the strands to fold around proteins and form chromosomes
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in order for the strands to separate to allow a ribosome to read the gene sequence for protein synthesis
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in order for the strand sequences to be rearranged, promoting adaptations and evolution of a species
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Detailed explanation-1: -Weak bonds may be easily broken but they are very important because they help to determine and stabilize the shapes of biological molecules. For example, they are important in stabilizing the secondary structure (alpha helix and beta-pleated sheet) of proteins. Hydrogen bonds keep complementary strands of DNA together.
Detailed explanation-2: -Hydrogen bonds ensure the faithfulness of DNA replication. This is because they ensure that the correct base is incorporated by the enzyme DNA polymerase.
Detailed explanation-3: -DNA replication Special molecules break the weak hydrogen bonds between bases, which are holding the two strands together.
Detailed explanation-4: -Hydrogen bonds of the untwisted RNA+DNA helix break, freeing the newly synthesized RNA strand. If the cell has a nucleus, the RNA is further processed and then moves through the small nuclear pores to the cytoplasm. Transcription is the first step leading to gene expression.