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Exam (elaborations)
VT BIOL 2604 (SEYLER) EXAM 4 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
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---4February 20262025/2026A+
- VT BIOL 2604 (SEYLER) EXAM 4 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 
 
Molecular Basis of Mutation - Answers Spontaneous or Induced 
 
 Arise because of changes in the base sequence of the nucleic acid of an organism's genome. 
point mutation - Answers change in a single base pair and can lead to a single amino acid change in a polypeptide or to no change at all 
Deletion - Answers A change to a chromosome in which a fragment of the chromosome is removed. 
Insertion - Answers A mutat...
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Exam (elaborations)
BIOL 2604 EXAM 1 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
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---3February 20262025/2026A+
- BIOL 2604 EXAM 1 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 
 
The Earth was sterile until about _________ - Answers 4 bya 
The first ________ years of life on Earth were microbial - Answers 3 billion 
______ produced O2 about 2.5 bya which helped facilitate other life - Answers Cyanobacteria 
Robert Hooke - Answers - Late 1600s 
- First to observe and describe microorganisms 
- Saw fungi/yeast only, no bacteria 
- 30x microscope 
- Wrote Micrographia: a book about what he saw 
Antoni Van ...
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joshuawesonga22