Mitosis Flashcards

1
Q

When the mother cell passes DNA to daughter cells the DNA is

A

Identical

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2
Q

This type of organism divides by binary fision

A

Prokaryotes

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3
Q

What is essentially the same of the cell division process in both eukaryotes and prokaryotes

A

Duplication and segregation of genetic information into daughter cells ; division of cellular content

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4
Q

How many chromosomes are in each human cell

A

46 chromosomes

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5
Q

How many pairs of chromosomes do humans have

A

23

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6
Q

What are chromosomes

A

Strand of DNA that is encoded with genes and is composed with proteins to help hold shape together

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7
Q

Name the condition when a human embryo is missing a chromosome

A

Monosomy

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8
Q

Name the condition where human embryo have an extra chromosome

A

Trisomy

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9
Q

What is the haploid number in humans

A

23

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10
Q

What is the diploid number in humans

A

46

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11
Q

This term is used when referring to the maternal and paternal chromosomes

A

Homologous

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12
Q

These types of cells are typical and usually diploid and are not directly involved with reproduction

A

Somatic cells

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13
Q

Chromosomes are composed of __________, a complex of DNA and protein when it is not in the process of dividing

A

Chromatin

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14
Q

A positive charged protein that attracts the DNA to coil and tightly bound to it

A

Histone proteins

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15
Q

The complex of DNA and histone proteins is called

A

Nucleosome

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16
Q

The tight coil of DNA wrapped in the nucleosomes is

A

Solenoid

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17
Q

After the nucleosomes are coiled into the solenoid the solenoid then organizes these______

A

Chromatin loops

18
Q

Binary fission

A

1-2 DNA replicates
3 cell elongates
4 -5 septation

19
Q

Diploid means

A

A cell has two set of chromosomes

20
Q

During which phase of mitosis do the cohesion holding the chromatids together break down allowing the chromotids to spit

21
Q

During which phase of mitosis do the chromatids attach to the spindle by their kinetochores

A

Prometaphase

22
Q

This is unrestrained , uncontrolled growth of cells in animals

23
Q

Three types of treatment for cancer

A

Radiation
Chemotherapy
Surgery

24
Q

Consider the G1 checkpoint . What molecules must the cell have accumulated to complex with Cdc2 to pass through this checkpoint

A

G1 cyclins

25
Consider the G2 / M checkpoint . What conditions must be present in the cell for the cell to pass through this checkpoint
The DNA was replicated correctly | DNA structure is OK
26
Mitosis makes
Identical cells
27
The cell in mitosis spends most of its life in
Interphase
28
In this phase of mitosis cells undergo growth DNA replication Cell functions
Interphase
29
Chromosomes are made of
Protein and DNA
30
Stages of mitosis
Prophase Metaphase Anaphase Telophase
31
In this phase of mitosis Chromosomes are condensing Cytoskeleton breaks down
Prophase
32
In this phase of mitosis the chromosome line up in the middle of cell
Metaphase
33
What holds the sister chromatids together
Centromere
34
This is where the chromosomes line up in metaphase
Metaphase plate
35
First checkpoint in cell cycle
G1/S
36
What are some of the factors that allow passage at the checkpoints
Growth Size of cell Nutritional stats
37
This attaches the sister chromatids which will attach to the microtubals
Kinetichore
38
Interphase
DNA copied | Centrisomes copied
39
Prophase
Chromosomes condense | Miotic spindle forms
40
Prometaphase
Nuclear envelopes fragment | Microtubuls - kinetichore