Protein Synthesis: Transcription and Translation Transcription (Click to watch video) Read: Step 1: Step 2: https://www.ck12.org/book/ck-12-biology/section/7.2/ An enzyme unwinds and unzips the DNA double-helix. Step 1: A Step 2: strands producing. Step 3: The messenger RNA (mRNA) breaks away from the and enters the Translation (Click to watch video) Read: RNA nucleotides pair with exposed complementary DNA nucleotides on one of the DNA (messenger). Transfer RNA: https://www.ck12.org/book/ck-12-biology/section/7.2/ Transfer RNA (tRNA) carry. specific amino acid. Transfer RNA (tRNA) has a 3-base group called the pairs up with a 3-base group on the messenger RNA called the At the ribosome, the complementary Step 3: attaches to the messenger RNA. DNA mRNA tRNA Ribosome Nucleus Codon DNA on the messenger RNA (mRNA) Word Bank: One transfer RNA (tRNA) carries The ribosome slides down to the next codon on the one amino acids mRNA (transfer). protein cytoplasm anticodon then leaves the on the transfer RNA (tRNA) pairs with the that (messenger) where it will pair with the anticodon of another Step 4: A long chain of amino acids is formed as more transfer RNA (tRNA) bind to the messenger RNA (mRNA). The long chain of amino acids is joined together to make a
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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