Final Review Multiple Choice flashcards _ Quizlet

In tig erb eetlesh av in g six sp o tsaisd o min an

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Unformatted text preview: called : in co mp lete d o min an ce A p o p u latio n is a g ro u p o f in d iv id u als o f th e same sp ecies th at liv e in th e same g en eral lo catio n an d h av e th e p o ten tial to in terb reed Ev o lu tio n is d efin ed as: a ch an g e in th e freq u en cy o f alleles in a p o p u latio n o v er time Th e ap p ro p riate u n it fo r d efin in g an d measu rin g g en etic v ariatio n is th e: p o p u latio n All o f th e fo llo win g statemen ts are tru e ab o u t mu tatio n s EXCEPT th e mu tatio n rate can b e affected b y g en etic d rift A sto rm wash ed fiv e female an d fiv e male tig er b eetles fro m th e main lan d to a small islan d th at h ad n o p rev io u s p o p u latio n o f tig er b eetles. In tig er b eetles, h av in g six sp o ts (A) is d o min an t to h av in g fo u r sp o ts (a). All ten b eetles h ad six sp o ts, b o t o n e male an d o n e female were h etero zy g o u s fo r th e fo u r­sp o t trait. If six o f th e b eetles d ied ran d o mly with o u t rep ro d u cin g , th e ratio n o f th e g en o ty p e co u ld b e q u ite d ifferen t in su b seq u en t g en eratio n s. Th is ch an g e in allele freq u en cies wo u ld b e an ex amp le o f: g en etic d rift Select fro m th e ch o ices b elo w th e statemen t th at b est d escrib es th e effect o f th e mig ratio n o f in d iv id u als in to a p o p u latio n . Mig ratio n o f in d iv id u als in to a p o p u latio n g en erally in creases th e g en etic v ariab ility with in a p o p u latio n Fo r a p o p u latio n to ev o lv e th ro u g h n atu ral selectio n : its memb ers mu st p o ssess in h eritab le v ariatio n Wh ich o f th e fo llo win g is th e b est measu re o f an o rg an isms' fitn ess? th e n u mb er o f fertile o ffsp rin g it p ro d u ces Natu ral selectio n resu lts fro m in teractio n s in d iv id u al o rg an isms an d th eir en v io rmen t. Artificial selectio n is lik ely to p ro d u ce p o p u latio n ­ lev el ch an g es mo st q u ick ely in o rg an isms with : A sh o rt g en erati...
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This document was uploaded on 02/25/2014.

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