BIOS-251 EXAM 2 REVIEW QUESTIONS WITH CORRECT ANSWERS 2026

BIOS-251: EXAM 2 REVIEW QUESTIONS jk jk jk jk




WITH CORRECT ANSWERS 2025
jk jk jk jk


Cell jkdivision jkin jkwhich jkthe jknucleus jkdivides jkinto jknuclei jkcontaining jkthe jksame jknumber jkof
jkchromosomes jk- jkCORRECT jkANSWER jk-Mitosis




The jkresting jkphase jkof jkmitosis. jkCell jkgrows, jkperforms jkits jknormal jkfunctions, jkand jkprepares jkfor jkdivision;
jkconsi jksts jkof jkG1, jkS, jkand jkG2 jkphases jk- jkCORRECT jkANSWER jk-Interphase




Cells jkthat jkhave jkleft jkthe jkcycle jkand jkcease jkdividing jkfor jka jklong jktime jk(or jkpermanently) jk- jkCORRECT
jkANSWER jk- j k G jkZero jk(G0) jkPhase




The jkfirst jkgap, jkor jkgrowth jkphase, jkof jkthe jkcell jkcycle, jkconsisting jkof jkthe jkportion jkof jkinterphase jkbefore
jkDNA jksyn jkthesis jkbegins. jk- jkCORRECT jkANSWER jk-G1 jkPhase




The jksynthesis jkphase jkof jkthe jkcell jkcycle; jkthe jkportion jkof jkinterphase jkduring jkwhich jkDNA jkis jkreplicated. jk-
jkCORRECT jkANSWER jk-S jkPhase




The jksecond jkgap, jkor jkgrowth jkphase, jkof jkthe jkcell jkcycle, jkconsisting jkof jkthe jkportion jkof jkinterphase jkafter
jkDNA jksy jknthesis jkoccurs.




Growth jkand jkpreparation jkfor jkmitosis jk - jkCORRECT jk ANSWER jk -G2 jkPhase



First jkand jklongest jkphase jkof jkmitosis, jkduring jkwhich jkthe jkchromosomes jkbecome jkvisible jkand jkthe
jkcentrioles jks jkeparate jkand jktake jkup jkpositions jkon jkthe jkopposite jksides jkof jkthe jknucleus jk- jkCORRECT

jkANSWER jk-Prophase




Second jkphase jkof jkmitosis, jkduring jkwhich jkthe jkchromosomes jkline jkup jkacross jkthe jkcenter jkof jkthe jkcell jk-
jkCORRECT jkANSWER jk-Metaphase




The jkthird jkphase jkof jkmitosis, jkduring jkwhich jkthe jkchromosome jkpairs jkseparate jkand jkmove jktoward
jkopposite jkp jkoles jk- jkCORRECT jkANSWER jk-Anaphase

, The jkfinal jkphase jkof jkcell jkdivision, jkbetween jkanaphase jkand jkinterphase, jkin jkwhich jkthe jkchromatids jkor
jkchromo jksomes jkmove jkto jkopposite jkends jkof jkthe jkcell jkand jktwo jknuclei jkare jkformed. jk- jkCORRECT

jkANSWER jk-Telophase




Division jk of jkthe jk cytoplasm jkduring jk cell jk division jk - jk CORRECT jk ANSWER jk -Cytokinesis



Cell jkdivision jkthat jkproduces jkreproductive jkcells jk(gametes) jkin jksexually jkreproducing jkorganisms
jk- jkCORRECT jkANSWER jk-Meiosis




Compare jk and jkContrast jkMitosis jk and jkMeiosis jk- jk CORRECT jk ANSWER jk -
Mitosis jkproduces jktwo jkdiploid jk(2n) jksomatic jkcells jkthat jkare jkgenetically jkidentical jkto jkeach jkother jkand
jkthe jkorig jkinal jkparent jkcell, jkwhereas jkmeiosis jkproduces jkfour jkhaploid jk(n) jkgametes jkthat jkare jkgenetically

jkunique jkfrom jke jkach jkother jkand jkthe jkoriginal jkparent jk(germ) jkcell.




Number jkof jkChromosomes jk in jk Humans... jk - jk CORRECT jk ANSWER jk -46



Haploid jkNumber jk of jk Chromosomes jk In jkHumans jk - jkCORRECT jk ANSWER jk -23



Control jkcenter jkof jkthe jkcell; jka jkpart jkof jkthe jkcell jkcontaining jkDNA jkand jkRNA jkand jkresponsible jkfor jkgrowth
jkand jkr jkeproduction jk- jkCORRECT jkANSWER jk-Nucleus




Processes jkand jktransports jkproteins jkmade jkat jkattached jkribosomes; jksynthesizes jkphospholipids
jk- jkCORRECT jkANSWER jk-Rough jkEndoplasmic jkReticulum jk(RER)




Fatty jkacid jkand jksteroid jksynthesis; jkdetoxifies jktoxic jksubstances jk- jkCORRECT jkANSWER jk-
jkSmooth jkEndoplasmic jkReticulum jk(SER)




A jkcell jkorganelle jkthat jkhelps jkmake jkand jkpackage jkmaterials jkto jkbe jktransported jkout jkof jkthe jkcell
jk- jkCORRECT jkANSWER jk-Golgi jkComplex




Cell jkorganelle jkfilled jkwith jkenzymes jkneeded jkto jkbreak jkdown jkcertain jkmaterials jkin jkthe jkcell jk-
jkCORRECT jkANSWER jk-Lysosomes