BIO 251 EXAM 2 QUESTIONS AND ANSWERS – LATEST UPDATE 2026/2027 | RATED A+ | 100 % GUARANTEED PASS!!

1 | Page


BIO 251 EXAM 2 QUESTIONS AND ANSWERS –
LATEST UPDATE 2026/2027 | RATED A+ | 100 %
GUARANTEED PASS!!



What are cells composed of? - correct -answer-Cell membrane
(plasma), cytoplasm, cytosol, nucleus, and cytoskeleton


What is a codon? - correct -answer-RNA triplet that specifies
amino acids. Tell where to start and stop


What happens during the S phase of the cell cycle? - correct
answer-DNA replicates, doubles DNA from 46 to 92

What is the start codon? - correct -answer-AUG


What is the stop codon? - correct -answer-UAG




What occurs during the G2 phase of the cell cycle? - correct
answer-Cells prepare for mitosis

,2 | Page




Which cell division ends up with two identical diploid daughter
cells? - correct answer-Mitosis




List the four phases of the cell cycle - correct -answer-G1
phaseS phaseG2 phaseMitosis OR meiosis




What occurs during the G1 phase of the cell cycle? - correct
answer-Cell growth in preparation for DNA replication




What kind of cell division concludes with 4 haploid daughter
cells that are genetically different? - correct -answer-Meiosis

, 3 | Page




Thank you for Purchasing this exam
Study Guide. We provide high-quality
academic materials to help students excel
in exams. Our other Services include but
not limited to: academic research,
University & College assignments
writing, essay writing, Online Classes,
and research projects. Our services are
reliable, affordable, and plagiarism-free.
All the Best in your Exam. For more
information; Contact us at:
or
0R +254
741484450



List the steps of mitosis in order - correct
answerProphaseMetaphaseAnaphaseTelophase What happens