Population Genetics

studied byStudied by 0 people
0.0(0)
learn
LearnA personalized and smart learning plan
exam
Practice TestTake a test on your terms and definitions
spaced repetition
Spaced RepetitionScientifically backed study method
heart puzzle
Matching GameHow quick can you match all your cards?
flashcards
FlashcardsStudy terms and definitions

1 / 33

encourage image

There's no tags or description

Looks like no one added any tags here yet for you.

34 Terms

1
Gene
DNA sequence coding for RNA/protein; found at a locus.
New cards
2
Alleles
Different gene variants.
New cards
3
Diploid organisms
Organisms that have two copies of each gene.
New cards
4
Homozygous
Genotype with identical alleles.
New cards
5
Heterozygous
Genotype with different alleles.
New cards
6
Gene pool
All alleles in a population.
New cards
7
Genotype
An individual’s allele combination.
New cards
8
Phenotype
Observable traits.
New cards
9
Population
Group of the same species in a shared environment that can interbreed.
New cards
10
Polymorphism
The presence of two or more alleles at a frequency greater than 1%.
New cards
11
SNPs
Single Nucleotide Polymorphisms, a major source of genetic variation.
New cards
12
Hardy-Weinberg Equation
Mathematical model for allele and genotype frequencies in a population.
New cards
13
Hardy-Weinberg equilibrium conditions
No mutations, no natural selection, large population, no migration, random mating.
New cards
14
Microevolution
Changes in a population’s gene pool over generations.
New cards
15
Natural Selection
Beneficial heritable traits become more common over generations.
New cards
16
Adaptation
Evolutionary changes improving survival and reproduction.
New cards
17
Reproductive Success
Likelihood of contributing fertile offspring.
New cards
18
Fitness
Relative reproductive success of a genotype.
New cards
19
Directional Selection
Selection that favors one extreme phenotype.
New cards
20
Stabilizing Selection
Selection that favors intermediate phenotype, against extremes.
New cards
21
Disruptive Selection
Selection that favors both extremes, not intermediates.
New cards
22
Balancing Selection
Maintains genetic variation through balanced polymorphism.
New cards
23
Intrasexual Selection
Same-sex competition for mates/resources.
New cards
24
Intersexual Selection
Mate choice based on traits signaling genetic quality.
New cards
25
Sexual Dimorphism
Visible differences between sexes due to sexual selection.
New cards
26
Cryptic Female Choice
Female-driven mechanisms that influence sperm success in fertilization.
New cards
27
Genetic Drift
Random changes in allele frequencies, independent of fitness.
New cards
28
Bottleneck Effect
Dramatic population reduction followed by recovery.
New cards
29
Founder Effect
Small group separates from a larger population to establish a new colony.
New cards
30
Gene Flow
Movement of alleles between populations.
New cards
31
Assortative Mating
Similar phenotypes mate preferentially.
New cards
32
Disassortative Mating
Dissimilar phenotypes mate preferentially.
New cards
33
Inbreeding
Mating between genetically related individuals.
New cards
34
Inbreeding Depression
Reduced fitness due to increased homozygosity of harmful alleles.
New cards

Explore top notes

note Note
studied byStudied by 3 people
187 days ago
5.0(1)
note Note
studied byStudied by 37 people
353 days ago
5.0(1)
note Note
studied byStudied by 12 people
697 days ago
5.0(1)
note Note
studied byStudied by 6 people
830 days ago
5.0(1)
note Note
studied byStudied by 11 people
238 days ago
4.0(1)
note Note
studied byStudied by 61 people
884 days ago
4.5(2)
note Note
studied byStudied by 8 people
705 days ago
5.0(1)
note Note
studied byStudied by 251 people
170 days ago
5.0(1)

Explore top flashcards

flashcards Flashcard (30)
studied byStudied by 16 people
556 days ago
5.0(1)
flashcards Flashcard (80)
studied byStudied by 13 people
690 days ago
5.0(1)
flashcards Flashcard (66)
studied byStudied by 80 people
548 days ago
5.0(1)
flashcards Flashcard (29)
studied byStudied by 5 people
772 days ago
5.0(1)
flashcards Flashcard (53)
studied byStudied by 7 people
25 days ago
5.0(1)
flashcards Flashcard (349)
studied byStudied by 175 people
523 days ago
5.0(1)
flashcards Flashcard (27)
studied byStudied by 4 people
799 days ago
5.0(1)
flashcards Flashcard (112)
studied byStudied by 48 people
527 days ago
5.0(1)
robot