BIO 1201 EXAM 3 LSU questions with answers

BIO 1201 EXAM 3 LSU questions with
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answers

True or False: The purpose of mitosis is to insure that
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daughter cells have identical genetic information at the
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mother cell. - CORRECT ANSWERS ✔✔true
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How many centromeres are there per chromosome? -
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CORRECT ANSWERS ✔✔1 |\ |\




How many centrosomes per chromosome consist of 2
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sister chromatids? - CORRECT ANSWERS ✔✔1
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When is DNA replicated? - CORRECT ANSWERS ✔✔S
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phase


When are sister chromatids separated? - CORRECT
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ANSWERS ✔✔Anaphase I |\ |\




If the DNA content in G2 is X, what is the DNA content of
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each daughter cell at Telophase? - CORRECT ANSWERS
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✔✔0.5X

,If the DNA content in G1 is X, what is the DNA content of
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each of the daughter cells at Telophase? - CORRECT
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ANSWERS ✔✔X |\




DNA replication checkpoint occurs where? - CORRECT
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ANSWERS ✔✔G2 |\




We inherit our mitochondria from our... - CORRECT
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ANSWERS ✔✔our mother |\ |\




In mitosis when do homologous chromosome pairs
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separate? - CORRECT ANSWERS ✔✔in mitosis, |\ |\ |\ |\ |\ |\



homologous chromosomes do not separate |\ |\ |\ |\




In meiosis when do homologous chromosome pairs
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separate? - CORRECT ANSWERS ✔✔Anaphase I |\ |\ |\ |\ |\




At G2, the amount of DNA is X. At Telophase II the amount
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of DNA in each of the daughter cells is... - CORRECT
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ANSWERS ✔✔0.25X |\




At G1, the amount of DNA is X. At Telophase II the amount
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of DNA in each of the daughter cells is... - CORRECT
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ANSWERS ✔✔0.5X |\

, At G2 there are 40 chromatids, what is the diploid
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chromosome number? - CORRECT ANSWERS ✔✔20 |\ |\ |\ |\ |\




At G2 there are 40 chromatids, at Telophase II each
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daughter cells has how many chromosomes? - CORRECT
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ANSWERS ✔✔10 |\




At G2, there are 40 centrosomes, at Telophase II each
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daughter cell has how many chromosomes? - CORRECT
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ANSWERS ✔✔20 |\




Why don't we talk about Gossian genetics? - CORRECT
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ANSWERS ✔✔he was not quantitative with his work |\ |\ |\ |\ |\ |\ |\




What is the alternative form of a gene? - CORRECT
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ANSWERS ✔✔allele |\




How many different alleles can a diploid individual have
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at a single gene locus if there are 4 alleles in the
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population? - CORRECT ANSWERS ✔✔2 alleles |\ |\ |\ |\ |\




True or False: Recessive alleles are not expressed because
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they code for an inactive or defective enzyme. -
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CORRECT ANSWERS ✔✔true |\ |\