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BS161 Biology Final Exam With Answers (194 Solved Questions)

Familiarize yourself with different question types using BS161 Biology Final Exam With Answers, featuring past exams.

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BS 161 FINAL EXAM WITH COMPLETE SOLUTIONS ( 3 VERSIONS)VERSION 1Barbara McClintock, who achieved fame for discovering that genes could move withingenomes,had her meticulous work ignored for nearly four decades, but eventually won the NobelPrize.Why was her work so distrusted?A)She worked only with maize, which was considered "merely" a plant.B)Geneticists did not want to lose their cherished notions of DNA stability.C)She allowed no one else to duplicate her work.D)The work of women scientists was still not allowed to be published.E)There were too many alternative explanations for transposition. - BWhich of the following is a representation of gene density?A)Humans have ~20,000 genes in 2,900 Mb.B)C. elegans has ~20,000 genes.C)Fritillaria has a genome 40 times the size of a human.D)Humans have 27,000 bp in introns.E)Humans have 2,900 Mb per genome. - AIf humans have 2,900 Mb, a specific member of the lily family has 120,000 Mb, and a yeasthas~13 Mb, why can't this data allow us to order their evolutionary significance?A)Size is mostly due to "junk" DNA.B)Size does not vary with gene complexity.C)Size does not compare to gene density.D)Size is comparable only within phyla.E)Size matters less than gene density. - BFragments of DNA have been extracted from the remnants of extinct woolly mammoths,amplified, and sequenced. These can now be used toA)appreciate the reasons why mammoths went extinct.B)introduce into relatives, such as elephants, certain mammoth traits.

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Document Details

University
Chamberlain College of Nursing
Course
BS 161
Subject
Biology

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