Biol 1108 Exam 1 Study Guide Questions with Correct Answers 2026

Biol 1108 Exam 1 Study Guide Questions
with Correct Answers 2025
population n j - n j CORRECT n j ANSWER n j -
all n j the n j individuals n j of n j a n j single n j species n j in n j a n j given n j place n j that n j interact n j (meaning
n j they n j can n j mate njwith n j one n j another, n j they n j can n j have n j gene n j flow)




metapopulation n j - n j CORRECT n j ANSWER n j -individual--population---
then n j this! n j a n j network n j of n j populations n j where n j individuals n j travel n j between n j or n j interact n j with
n j other njpopulations n j only n j rarely; n j only n j interact n j sometimes



-a n j collection n j of n j different n j populations n j of n j the n j same n j species n j but n j separated n j spatially

-
ex n j bunch n j of n j parrots n j of n j the n j same n j species n j in n j a n j forest n j but n j they n j live n j on
n j opposite n j ends n j of n j the n j f njorest, n j so n j the n j collection n j of n j all n j the n j groups n j of n j parrots


n j would n j be n j a n j THIS



-same n j species n j living n j in n j separate n j spaces



species n j - n j CORRECT n j ANSWER n j -
not n j really n j one n j definition; n j very n j hard n j to n j define n j ; n j a n j group n j of n j individuals/organisms
n j that n j have n j si njmilar n j characteristics n j that n j can n j mate



-there n j is n j the n j BSC n j and n j morphological n j species n j concept



community n j - n j CORRECT n j ANSWER n j -all n j the n j living n j organisms n j that n j interact n j in n j a n j common
n j location




ecosystem n j - n j CORRECT n j ANSWER n j -
includes n j both n j biotic n j and n j abiotic n j factors n j ; n j combination n j of n j the n j two n j interacting n j in
n j a n j place n j ["pla njce' n j is n j loosely n j defined]




biome n j (landscpe) n j - n j CORRECT n j ANSWER n j -ecosystems n j that n j interact

,gene n j - n j CORRECT n j ANSWER n j -
a n j piece n j of n j DNA n j that n j codes n j for n j a n j specific n j trait n j (can n j be n j 100s n j or n j 1000s n j of n j bases) n j ;
n j place n j on n j ch njromosome




allele n j - n j CORRECT n j ANSWER n j -
one n j state n j of n j a n j gene n j (each n j one n j would n j have n j a n j different n j base n j sequence) n j aka n j a
n j single n j letter n j in nja n j genotype




dominant n j allele n j - n j CORRECT n j ANSWER n j -
trait n j expressed n j when n j a n j single n j copy n j is n j present n j ; n j denoted n j with n j a n j capital n j letter



recessive n j allele n j - n j CORRECT n j ANSWER n j -
only n j expressed n j when n j no n j dominant n j allele n j is n j present n j ; n j requires n j two n j lowercase n j letters

NOTE! n j dominant n j alleles n j are n j not n j more n j common!! n j dominance n j has n j nothing n j to n j do
n j with n j frequen njcy




allele n j frequency n j - n j CORRECT n j ANSWER n j -
how n j common n j a n j is n j a n j single n j letter/ n j allele n j ; n j the n j prevalence n j of n j an n j allele n j in n j a
n j population



- n j a n j probability n j between n j 0 n j and n j 1



genotype n j - n j CORRECT n j ANSWER n j -
the n j collection n j of n j alleles n j present n j in n j the n j genome n j (assume n j organisms n j are n j diploid n j = n j 2)



phenotype n j - n j CORRECT n j ANSWER n j -the n j expressed n j traits/physical n j and n j visual



co-dominant n j - n j CORRECT n j ANSWER n j -
heterozygotes n j display n j BOTH n j dominant n j alleles n j in n j their n j phenotype n j ; n j multiple n j states
n j of n j a n j gene njand n j they n j are n j equally n j "persuasive" n j in n j terms n j of n j phenotypes



-think n j "both n j at n j the n j same n j time"

, -ex. n j calico n j cat n j has n j patches n j of n j both n j patches n j of n j black n j and n j orange



incomplete n j dominance n j - n j CORRECT n j ANSWER n j -
heterozygotes n j display n j an n j intermediate n j (blended/mixed) n j phenotype



ex n j red n j and n j white n j flowers n j mate n j to n j produce n j a n j pink n j flower



polygenic n j traits n j - n j CORRECT n j ANSWER n j -traits n j controlled n j by n j more n j than n j one n j gene n j ex n j hair
n j color




phenotypic n j plasticity n j - n j CORRECT n j ANSWER n j -
the n j range n j of n j phenotypes n j that n j are n j possible n j given n j different n j environment n j conditions

-plants n j have n j this n j higher n j than n j humans

- n j ex n j plants n j having n j different n j amounts n j of n j growth n j depending n j on n j the n j amount n j of n j light n j it
n j has



-ex n j flower n j color n j in n j Hydrangea n j depends n j on n j the n j pH n j of n j the n j soil



(micro) n j evolution n j - n j CORRECT n j ANSWER n j -
a n j change n j in n j the n j frequency n j of n j alleles n j over n j time n j (generations) n j in n j a n j population
n j (on n j species n j in njone n j place)



-NOTE! n j individuals n j cannot n j evolve n j ; n j cannot n j occur n j in n j a n j single n j generation



two n j requirements n j for n j evolution n j - n j CORRECT n j ANSWER n j -1) n j heritability n j of n j that n j trait-
controlled n j by n j genes, n j not n j by n j groomers! n j (like n j dog n j ex) n j ; n j phenotypes n j that n j are
n j acquired n j cannot njevolve



2) n j variation n j in n j the n j population-
genetic n j variation n j at n j a n j given n j gene n j ; n j its n j necessary n j in n j order n j for n j that n j trait n j to n j evolve

-
bc n j there n j are n j no n j alleles n j that n j can n j shift n j back n j and n j forth n j SO n j if n j there n j are n j no
n j alternatives, n j allele n j f njrequencies n j cannot n j shift n j from n j generation n j to n j generation