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Page 372
Neil A. Campbell. ( a ) Repressible operon Example : trp operon Inactive repressor Corepressor ( b ) Inducible operon Example : lac operon Inactive repressor Figure 17.22 - — encodes enzymes for tryptophan synthesis Operator DNA Active ...
Neil A. Campbell. ( a ) Repressible operon Example : trp operon Inactive repressor Corepressor ( b ) Inducible operon Example : lac operon Inactive repressor Figure 17.22 - — encodes enzymes for tryptophan synthesis Operator DNA Active ...
Page 1076
... example . Herds of large mammals such as buffalo and giraffes can sometimes be counted accurately . In most cases , however , it is impractical or impossible to count all individuals in a population . Instead , ecologists often use a ...
... example . Herds of large mammals such as buffalo and giraffes can sometimes be counted accurately . In most cases , however , it is impractical or impossible to count all individuals in a population . Instead , ecologists often use a ...
Page 1107
... example , if two plant species , one an herbaceous plant and the other a tree , colonize a community at the same time , the herbaceous species may have earlier prom- inence because of faster growth . The ecological impact of the tree ...
... example , if two plant species , one an herbaceous plant and the other a tree , colonize a community at the same time , the herbaceous species may have earlier prom- inence because of faster growth . The ecological impact of the tree ...
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