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Page 368
... genes for all the enzymes needed for the pathway . REGULATION OF GENE Precursor REGULATION OF ENZYME ACTIVITY End product inhibits activity of first enzyme of EXPRESSION End product Gene 1 Enzyme 1 represses expression of genes for pathway ...
... genes for all the enzymes needed for the pathway . REGULATION OF GENE Precursor REGULATION OF ENZYME ACTIVITY End product inhibits activity of first enzyme of EXPRESSION End product Gene 1 Enzyme 1 represses expression of genes for pathway ...
Page 384
... GENE ORGANIZATION AND ITS EVOLUTION The arrangement of eukaryotic genes on a chromo- some is quite different from that of prokaryotic genes . In prokaryotes , genes that are coordinately controlled are often clustered into an operon ...
... GENE ORGANIZATION AND ITS EVOLUTION The arrangement of eukaryotic genes on a chromo- some is quite different from that of prokaryotic genes . In prokaryotes , genes that are coordinately controlled are often clustered into an operon ...
Page 385
... genes within each family cluster are long stretches of noncoding DNA , which includes pseudogenes , nucleotide sequences very similar to the functional genes . Presumably , the different genes and pseudogenes in each family arose from gene ...
... genes within each family cluster are long stretches of noncoding DNA , which includes pseudogenes , nucleotide sequences very similar to the functional genes . Presumably , the different genes and pseudogenes in each family arose from gene ...
Contents
Themes in the Study of Life | 1 |
UNIT ONE The Chemistry of Life | 15 |
Atoms Molecules and Chemical Bonds | 20 |
Copyright | |
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active adaptive algae allele amino acids animals asexual atoms bacteria biology called Calvin cycle carbon cell walls cellular Chapter chemical chlorophyll chloroplasts chromosome complex covalent cycle cytoplasm diploid disease diversity electron transport chain embryo energy environment enzymes eukaryotic eukaryotic cells evolution evolutionary evolved example fertilization Figure flowers fossil function fungi gametes gametophyte gene pool genetic genome genotype glucose glycolysis haploid human hydrogen bonds inherited ions living meiosis metabolic microscope microtubules minerals mitochondria mitosis molecular mRNA multicellular mutations natural selection nitrogen nucleotide nucleus nutrients occurs organelles organic molecules oxidized oxygen pair pathway phage phenotype phosphate photosynthesis phylum plant cells plasma membrane polypeptide population produce prokaryotes protein protists proton reaction recombinant replication reproduction respiration ribosomes root seed sequence sexual soil solution speciation species sperm strand structure sugar synthesis tion tissue traits vascular vertebrates viruses xylem zygote