Cell Division Recap

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Cell Division Recap

Downloadable with answers.

Name the five main stages of mitosis in order.=20
List three functions of mitosis.=20
At which stage of mitosis do chromosomes first become visible with = the=20 light microscope?=20
At which mitotic stages are the nuclear membrane entirely absent?=20
At which mitotic stage does the parent cell 'split' into two = daughter=20 cells?=20
What term describes this 'splitting'?=20
Name the organelles needed for cell division in animals, but = absent in=20 plants.=20
During mitosis, by which stage is the fully organised spindle = present?=20
What are the two parallel 'arms' of a single chromosome called?=20
Name the structure that links them.=20
When does the nucleolus reappear?=20
When are bivalents formed?=20
What are bivalents?=20
Name the process bivalents are formed by.=20
What is a key difference in genetic terms between mitotic prophase = and=20 meiotic prophase I?=20
What are two key differences between mitotic metaphase and meiotic = metaphase I?=20
Why is a second round of division (Meiosis II) necessary?=20
Which type of division produces haploid cells?=20
What in genetic terms are the different outcomes of mitosis and = meiosis in=20 animals?=20
Compile a table as follows, showing the key events in both types = of cell=20 division and email it to me. = (Or check=20 your textbook!)

	Interphase	Prophase	Metaphase	Anaphase	Telophase
Mitosis
Meiosis I
Meiosis II

Answers

Interphase;prophase;metaphase;anaphase;telophase (IPMAT)=20
Growth/vegetative or sexual reproduction/repair=20
Prophase=20
Metaphase and Anaphase - keyword is 'entirely'-remember the = membrane is=20 present for at least part of the other stages.=20
Telophase=20
Cytokinesis=20
Centrioles=20
Metaphase (though it is forming during the later parts of=20 prophase!)=20
Chromatids=20
Centromere=20
Telophase=20
Meiotic prophase I=20
They are formed by the pairing of homologous chromosomes.=20
Synapsis=20
Crossing over occurs during meiotic prophase I but not mitotic = prophase=20
Random assortment of homologous chromosomes during meiotic = metaphase I;=20 during mitosis chromosomes line up singly along equator,attached by = centromere=20
Because crossing over has created chromosomes with 'odd' = genetically=20 dissimilar chromatids. Only a mitotic division will separate these.=20
Meiosis=20
Mitosis produces two genetically identical diploid(in = animals)daughter=20 cells while meiosis results in four genetically different haploid = daughter=20 cells.=20
Email me or check your=20 textbook!

BACK TO = A LEVEL=20 REVISION INDEX

3D1=20

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