UCI Bio 93 Final Exam Practice Questions and Answers |Graded A
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Course
UCI Bio 93
Institution
UCI Bio 93
UCI Bio 93 Final Exam Practice
Questions and Answers |Graded A
What are the four most common elements in living matter? - Answer-Hydrogen, Oxygen, Nitrogen,
and Carbon --make up 96% of all living matter.
Properties of Acids - Answer-Donate H+ to a solution, accept electrons, and have a pH of &l...
What happens in Telophase 1 and cytokinesis? - Answer✔✔-The homologous chromosome pairs
complete their migration to the two poles as a result of the action of the spindle. Now a haploid set of
chromosomes is at each pole, with each chromosome still having two chromatids. A nuclear envelope
reforms around each chromosome set, the spindle disappears, and cytokinesis follows.
What happens during meiosis 2? - Answer✔✔-sister chromatids separate.
What happens in prophase 2 of meiosis? - Answer✔✔-A new spindle forms around the chromosomes.
What happens in metaphase 2 of meiosis? - Answer✔✔-Metaphase 2 chromosomes line up at the
equator.
What happens in anaphase 2 of meiosis? - Answer✔✔-Centromeres divide chromatids move to opposite
poles of the cells.
What happens during telophase 2 of meiosis? - Answer✔✔-A nuclear envelope forms around each set of
chromosomes and the cytoplasm divides.
What makes meiosis a unique form of cell division - Answer✔✔-Synapsis and crossing over -- occurs in
prophase 1, pairing up of homologous chromosomes, homologous chromosomes cross over and
exchange corresponding genetic information (the DNA exchanged contain the same genes, but may have
different alleles).
How does meiosis increase genetic variability? - Answer✔✔-Independent assortment (meiosis 1 --
homologous chromosomes separate independently), crossing over (genetic recombination, prophase 1),
and random fertilization (any egg can join with any sperm -- most effective way to obtain genetic
variability).
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