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The Triplet Code A?gene?is a?sequence of nucleotide bases?in a DNA molecule that?codes for the production of a specific sequence of amino acids, that in turn make up a?specific polypeptide?(...
AQA A Level Biology復(fù)習(xí)筆記4.1.5 Genetic Loci
Genetic Loci Genes, loci and alleles The DNA contained within chromosomes is essential for cell survival Every?chromosome?consists of a long DNA molecule that?codes for several different pro...
AQA A Level Biology復(fù)習(xí)筆記4.1.4 Genes
The Definition of a Gene A?gene?is a base?sequence of DNA?that codes for the?amino acid sequence of a polypeptide?or a?functional RNA molecule Functional RNA molecules are required for prote...
AQA A Level Biology復(fù)習(xí)筆記4.1.3 Mitochondria & Chloroplast DNA
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AQA A Level Biology復(fù)習(xí)筆記4.1.2 Eukaryotic DNA
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Evaluating Data Linked to Mass Flow Hypothesis The mechanism of transport that occurs within the phloem is still debated by scientists The mass flow hypothesis suggests that there is a trans...
