BIO152H5 Study Guide - Telophase, Spindle Apparatus, Centriole

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cyanhamster999

11 Jan 2015

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Document Summary

Difference between prokaryote and eukaryote cell division: Plasma membrane pinched inward and a new cell wall is made. Microtubules pass through the nucleus to make sure they are properly oriented within the cell as a daughter cell separates from the parent: diatoms and some yeast cells (unicellular eukaryotes): has nuclear envelope intact throughout division process. Microtubules separate chromosomes within nuclear envelope: most eukaryotes: spindle forms outside nucleus and nuclear envelope breaks down during mitosis. Microtubules separate chromosomes and 2 nuclear envelopes form. Identify the type of cell based on microscopic images: Steps of mitosis: g2 of interphase, nuclear envelope closes. 2 centrosomes form (they refer to centrioles and spindle fibres: chromosomes are not condensed yet, dna replication done previously in s phase of cell cycle. Each chromatid is one chromosome (46): chromatids pulled (centromere first) to opposite poles by kinetochore microtubules, cell elongates as non-kinetochore microtubules elongates and push away against each other.

Related Questions

1- Most of a cell's life is spend in this phase of the cell cycle:

--------------------

2- The cell cycle is a highly regulated process.

True

False

3- Cells replicate their DNA during ________________ phase.

4- In animal cells, ________________________ is the indentation of the cell's surface that marks cytokinesis, the final splitting of the membrane, in the process of cell division.

cleavage furrow

binary fission

cell plate

sister chromatids

5- Somatic ("body") cells are _______________ (2n). This means there are two copies of each chromosome.

6- During the _______ phase(s) cells perform their everyday functions.

7- When chromosomes are duplicated the two strands are called _______________________________ and they are linked together at a point called the ____________________.

sister strands; kinetochore

sister chromatids; centromere

dual chromatids; centromere

genes; chromatid

8- New somatic âbodyâ cells are formed by this process:

meiosis

binary fission

replication

mitosis

9- The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.

10- Cells replicate their DNA during ________________ phase.

pucecat917

5- Somatic ("body") cells are _______________ (2n). This means there are two copies of each chromosome.

6- During the _______ phase(s) cells perform their everyday functions.

7- When chromosomes are duplicated the two strands are called _______________________________ and they are linked together at a point called the ____________________.

sister strands; kinetochore

sister chromatids; centromere

dual chromatids; centromere

genes; chromatid

8- New somatic âbodyâ cells are formed by this process:

meiosis

binary fission

replication

mitosis

9- The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.