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BIO 1201 EXAM 3 LSU UPDATED Exam Questions and CORRECT Answers

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BIO 1201 EXAM 3 LSU UPDATED Exam Questions and CORRECT Answers True or False: The purpose of mitosis is to insure that daughter cells have identical genetic information at the mother cell. - CORRECT ANSWER - true How many centromeres are there per chromosome? - CORRECT ANSWER - 1 How many centrosomes per chromosome consist of 2 sister chromatids? - CORRECT ANSWER - 1

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BIO 1201 EXAM 3 LSU UPDATED
Exam Questions and CORRECT Answers
True or False: The purpose of mitosis is to insure that daughter cells have identical genetic
information at the mother cell. - CORRECT ANSWER - true



How many centromeres are there per chromosome? - CORRECT ANSWER -1


How many centrosomes per chromosome consist of 2 sister chromatids? - CORRECT
ANSWER -1



When is DNA replicated? - CORRECT ANSWER - S phase



When are sister chromatids separated? - CORRECT ANSWER - Anaphase I


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


If the DNA content in G1 is X, what is the DNA content of each of the daughter cells at
Telophase? - CORRECT ANSWER -X



DNA replication checkpoint occurs where? - CORRECT ANSWER - G2



We inherit our mitochondria from our... - CORRECT ANSWER - our mother



In mitosis when do homologous chromosome pairs separate? - CORRECT ANSWER - in
mitosis, homologous chromosomes do not separate

, In meiosis when do homologous chromosome pairs separate? - CORRECT ANSWER -
Anaphase I


At G2, the amount of DNA is X. At Telophase II the amount of DNA in each of the daughter
cells is... - CORRECT ANSWER - 0.25X


At G1, the amount of DNA is X. At Telophase II the amount of DNA in each of the daughter
cells is... - CORRECT ANSWER - 0.5X


At G2 there are 40 chromatids, what is the diploid chromosome number? - CORRECT
ANSWER - 20


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


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



Why don't we talk about Gossian genetics? - CORRECT ANSWER - he was not
quantitative with his work


What is the alternative form of a gene? - CORRECT ANSWER - allele


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


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



What is an example of a genotype? - CORRECT ANSWER - PP, Pp, or pp
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