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Bio 1108 Exam 1 | UPDATED Questions with 100% Verified Answers

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Bio 1108 Exam 1 | UPDATED Questions with 100% Verified Answers

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Bio 1108 Exam 1 | UPDATED Questions with 100% Verified
Answers
Q1: Prezygotic Mechanism


A: Prevents wastage of gametes


Q2: Postzygotic Mechanism


A: Gametes are wasted


Q3: Monophyletic Group


A: ancestral population plus all of descendants


Q4: Synamorphy


A: shared, derived characteristics


Q5: Nodes


A: where a branching takes place


Q6: Subspecies


A: "below" the species


Q7: Alloparty


A: common species becomes separate over time; requires a barrier


Q8: Sympatry


A: certain drive leads to separation


Q9: Geographic Isolation


A: 1.) Dispersal and colonization
2.) genetic drift and selection
3.) Two populations are isolated

, Q10: Fragmentation


A: 1.) Chance Seperation
2.) Genetic drift and selection
3.) Two populations are isolated

Q11: Vicariance


A: the physical splitting of a population into smaller, isolated populations by a genetic
barrier

Q12: Types of Natural Selection


A: 1.) Directional
2.) Stabilizing/Balancing
3.)Diversifying/Disruptive

Q13: Directional


A: selection operating on phenotypic extremes


Q14: Stabilizing/Balancing


A: selection based on the middle


Q15: Diversifying/Disruptive


A: selection is operated on two phenotypic extremes


Q16: Allopolyploidy


A: 1 species


Q17: Autopolyploidy


A: 2 species


Q18: Hybrid


A: the offspring of two different species

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