BIOLOGY 1201 EXAM 3 2026 STUDY GUIDE REVISION SHEET CORE CONCEPT BREAKDOWN

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BIOLOGY 1201 EXAM 3 2026 STUDY GUIDE REVISION SHEET CORE CONCEPT BREAKDOWN

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Course BIOLOGY 1201

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BIOLOGY 1201 EXAM 3 2026 STUDY GUIDE REVISION SHEET CORE CONCEPT BREAKDOWN

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BIOLOGY 1201 EXAM 3 2026 STUDY GUIDE
REVISION SHEET CORE CONCEPT
BREAKDOWN

◉ How many centromeres are there per chromosome?
Answer: 1

◉ How many centrosomes per chromosome consist of 2 sister
chromatids?
Answer: 1

◉ When is DNA replicated?
Answer: S phase

◉ When are sister chromatids separated?
Answer: Anaphase I

◉ If the DNA content in G2 is X, what is the DNA content of each
daughter cell at Telophase?
Answer: 0.5X

,◉ If the DNA content in G1 is X, what is the DNA content of each of
the daughter cells at Telophase?
Answer: X

◉ DNA replication checkpoint occurs where?
Answer: G2

◉ We inherit our mitochondria from our...
Answer: our mother

◉ In mitosis when do homologous chromosome pairs separate?
Answer: in mitosis, homologous chromosomes do not separate

◉ In meiosis when do homologous chromosome pairs separate?
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...
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...

, Answer: 0.5X

◉ At G2 there are 40 chromatids, what is the diploid chromosome
number?
Answer: 20

◉ At G2 there are 40 chromatids, at Telophase II each daughter cells
has how many chromosomes?
Answer: 10

◉ At G2, there are 40 centrosomes, at Telophase II each daughter
cell has how many chromosomes?
Answer: 20

◉ Why don't we talk about Gossian genetics?
Answer: he was not quantitative with his work

◉ What is the alternative form of a gene?
Answer: allele

◉ How many different alleles can a diploid individual have at a
single gene locus if there are 4 alleles in the population?
Answer: 2 alleles

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Uploaded on: June 20, 2026
Number of pages: 22
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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