BIO 106 Exam 1 – Questions With Applicable Solutions
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Sherpath: Diabetes Mellitus Chapter 21 Test Case Study 4 (Short
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Practice questions for this set
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- a process transforming sunlight energy into biological energy
- the basis of most energy of life on Earth; it provides food for other organisms
Choose an answer
1 Evolutionary theory 2 mutation
3 photosynthesis 4 character
Don't know?
Terms in this set (91)
Evolutionary theory the understanding of the mechanisms of evolutionary change
descent with modification divergent species share a common ancestor and have
diverged from one another gradually through time
natural selection the differential survival and reproduction of individuals based
on variation in their traits
phenotypes the physical expression of an organism's genes
character the feature of a phenotype
trait the specific form of a character
heritable trait a trait that is at least partly determined by the organism's
genes
, genotype the genetic constitution that governs a character
alleles different forms of a gene
locus a particular site on a chromosome
gene pool the sum of all copies of all alleles at all loci found in a
population
population a group of individuals of a single species that live and
interbreed in a particular geographic area
mutation any change in the nucleotide sequence of an organism's DNA
allele frequency the proportion of an allele in a gene pool
genotype frequency the proportion of a genotype among the individuals of a
population
artificial selection the purposeful selection of specific phenotypes by humans
an adaptation a favored trait that evolves through natural selection
positive selection selection for beneficial changes
purifying selection selection against deleterious changes
gene flow migration of individuals and movements of gametes between
populations
genetic drift in small populations - random changes in allele frequencies
from one generation to the next
population bottleneck when a population is dramatically reduced in size and only a
small number of individuals survive
founder effect when a few pioneering individuals colonize a new region
sexual selection individuals of one sex mate preferentially with particular
individuals of the opposite sex rather than at random
Hardy-Weinberg equilibrium a model in which allele frequencies in a population do not
change across generations and genotype frequencies can be
predicted from allele frequencies
5 principles of the Hardy-Weinberg - No mutation
equilibrium - No selection(of any kind) among genotypes
- No gene flow
- Population size is infinite
- Mating is random (never preferential)
fitness the reproductive contribution of a phenotype to subsequent
generations relative to the contributions of other phenotypes
stabilizing selection a form of natural selection that preserves the average
characteristics of a population by favoring average individuals
Save
Students also studied
Sherpath: Diabetes Mellitus Chapter 21 Test Case Study 4 (Short
30 terms 24 terms 22 terms
jesssbee Preview kenanderson2017 Preview Brittany182
Practice questions for this set
Learn 1 /7 Study using Learn
- a process transforming sunlight energy into biological energy
- the basis of most energy of life on Earth; it provides food for other organisms
Choose an answer
1 Evolutionary theory 2 mutation
3 photosynthesis 4 character
Don't know?
Terms in this set (91)
Evolutionary theory the understanding of the mechanisms of evolutionary change
descent with modification divergent species share a common ancestor and have
diverged from one another gradually through time
natural selection the differential survival and reproduction of individuals based
on variation in their traits
phenotypes the physical expression of an organism's genes
character the feature of a phenotype
trait the specific form of a character
heritable trait a trait that is at least partly determined by the organism's
genes
, genotype the genetic constitution that governs a character
alleles different forms of a gene
locus a particular site on a chromosome
gene pool the sum of all copies of all alleles at all loci found in a
population
population a group of individuals of a single species that live and
interbreed in a particular geographic area
mutation any change in the nucleotide sequence of an organism's DNA
allele frequency the proportion of an allele in a gene pool
genotype frequency the proportion of a genotype among the individuals of a
population
artificial selection the purposeful selection of specific phenotypes by humans
an adaptation a favored trait that evolves through natural selection
positive selection selection for beneficial changes
purifying selection selection against deleterious changes
gene flow migration of individuals and movements of gametes between
populations
genetic drift in small populations - random changes in allele frequencies
from one generation to the next
population bottleneck when a population is dramatically reduced in size and only a
small number of individuals survive
founder effect when a few pioneering individuals colonize a new region
sexual selection individuals of one sex mate preferentially with particular
individuals of the opposite sex rather than at random
Hardy-Weinberg equilibrium a model in which allele frequencies in a population do not
change across generations and genotype frequencies can be
predicted from allele frequencies
5 principles of the Hardy-Weinberg - No mutation
equilibrium - No selection(of any kind) among genotypes
- No gene flow
- Population size is infinite
- Mating is random (never preferential)
fitness the reproductive contribution of a phenotype to subsequent
generations relative to the contributions of other phenotypes
stabilizing selection a form of natural selection that preserves the average
characteristics of a population by favoring average individuals
