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Page 443
Neil A. Campbell. Table 21.1 Causes of microevolution Mechanism Genetic drift Gene flow Mutation pressure Nonrandom mating Natural selection Tends to Be Action on Gene Pool Adaptive ? Random change in small gene pool due to sampling ...
Neil A. Campbell. Table 21.1 Causes of microevolution Mechanism Genetic drift Gene flow Mutation pressure Nonrandom mating Natural selection Tends to Be Action on Gene Pool Adaptive ? Random change in small gene pool due to sampling ...
Page 444
... Genetic drift is also likely whenever a few individuals colonize an isolated island , lake , or some other habitat new to that species . The smaller the sample size , the less the genetic makeup of the colonists will represent the gene pool ...
... Genetic drift is also likely whenever a few individuals colonize an isolated island , lake , or some other habitat new to that species . The smaller the sample size , the less the genetic makeup of the colonists will represent the gene pool ...
Page 473
... gene pools of populations . For this reason , one criticism of the ... pool has allelic frequencies that maximize the average fitness of a ... gene pool , a population must go through a period corresponding to a valley on the adaptive ...
... gene pools of populations . For this reason , one criticism of the ... pool has allelic frequencies that maximize the average fitness of a ... gene pool , a population must go through a period corresponding to a valley on the adaptive ...
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