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Exam-UConn Bio 1108 Final Exam Quiz and Lecture Questions with Solutions $13.49   Add to cart

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Exam-UConn Bio 1108 Final Exam Quiz and Lecture Questions with Solutions

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  • BIOS 1108
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  • BIOS 1108

Exam-UConn Bio 1108 Final Exam Quiz and Lecture Questions with Solutions

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  • September 11, 2024
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  • Exam (elaborations)
  • Questions & answers
  • BIOS 1108
  • BIOS 1108
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Exam-UConn Bio 1108 Final Exam Quiz and Lecture
Questions with Solutions

Which one of the following is a selective advantage of simple multicellularity over single-

celled


organisms? CORRECT ANS-Multicellularity helps organisms avoid predation.




Which one of the following organisms has coenocytic organization? CORRECT ANS-some

green algae




Why do mitochondria and chloroplasts have small genome? CORRECT ANS-They have

small genomes because over time, much of their nucleic acid has migrated to the host cell


nucleus.




Some slime molds make structures called plasmodia which: CORRECT ANS-contain many

nuclei in one large cell.




Chloroplasts have outer and an inner membranes that separate the stroma and thylakoids

from the

, Exam-UConn Bio 1108 Final Exam Quiz and Lecture
Questions with Solutions

cytoplasm. What is believed to be the origin of the outer membrane of the chloroplast?

CORRECT ANS-It is the remnant of the ancient host cell's plasma membrane following

endocytosis of the


cyanobacteria.




The peppered moth provides a well-known example of natural selection. The lightcolored


form of the moth was predominant in England before the industrial revolution. In


the mid-nineteenth century, a dark-colored form appeared. The difference is produced by


a dominant allele of one gene. By about 1900, approximately 90% of the moths around


industrial areas were dark colored, whereas light-colored moths were still abundant


elsewhere. Apparently, birds could readily find the light moths against the soot-darkened


background in industrial areas and therefore were eating more light moths. Recently, use


of cleaner fuels has greatly reduced soot in the landscape, and the dark-colored moths


have been disappearing. Should the two forms of moths be considered separate species?

CORRECT ANS-No




Three populations of crickets look very similar, but the males have courtship songs that

, Exam-UConn Bio 1108 Final Exam Quiz and Lecture
Questions with Solutions

sound different. What function would this difference in song likely serve if the


populations came in contact? CORRECT ANS-a prezygotic isolating mechanism




How are two different species most likely to evolve from one ancestral species? CORRECT

ANS-allopatrically, after the ancestral species has split into two populations




polytomy is a graphical depiction of what type of relationship between groups? CORRECT

ANS-The common ancestor node with no resolution among descendant groups.




One reason we see relatively little genetic variation among human regional populations


is that: CORRECT ANS-humans migrated out of Africa so recently that we haven't had

enough time


for regional variation to accumulate




The term "n" refers to the size of a population, that is, the number


of individuals in that population. In general, in a sample of n

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