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Cells - CH1+CH2+CH3
Cell Division - CH2
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Created by
Sienna Valarino Wahnon
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Cards (120)
what is contained within the nucleus?
DNA
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what is the job of the nucleus?
To control the cell
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what does DNA control?
Our characteristics
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what may happen if DNA within a cell is disrupted?
Cellular processes may be altered
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what does the nucleus contain?
Genetic information
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where are chromosomes found?
Within the nucleus
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what are chromosomes made of?
Protein and DNA
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Where is DNA found in almost all body cells?
In the
nucleus
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What are sex cells (sperm and ova) called?
Gametes
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How much of an organism's DNA do gametes contain?
Half
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What type of cells are gametes?
Haploid
cells
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What is the name for cells that contain DNA from both parents?
Diploid
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How much DNA do diploid cells contain from each parent?
Half
from each parent
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What structures is DNA coiled into?
Chromosomes
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How many pairs of chromosomes do humans have?
23
pairs
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How many chromosomes do humans have in total?
46
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Do all eukaryotic organisms have the same number of chromosomes?
No
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What is a gene?
Section of
DNA
that codes
proteins
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What does a gene code for?
A particular
protein
/characteristic
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How many genes does each chromosome contain?
Thousands
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What does the nucleus contain?
Chromosomes
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What do your genes code for?
Your
characteristics
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What do chromosomes contain?
DNA
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What is a chromosome?
Very small X-shaped objects carrying genes
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What do we inherit from our parents?
Genes
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What are genes linked together in?
Chromosomes
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Where does one set of chromosomes come from?
The
mother's egg cell
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Where does the other set of chromosomes come from?
The father's
sperm cell
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What are eggs and sperm called?
Gametes
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What is the name of the process where an egg and sperm cell join together?
Fertilisation
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How many chromosomes are in human body cells?
46
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What is DNA
The chemical from which chromosomes are made.
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How are chromosomes found in human body cells?
In
pairs
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What do the 23 pairs of chromosomes consist of?
22 pairs
plus 2
sex chromosomes
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What is a zygote?
Cell from
egg
and
sperm
fusion
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What is the name for the eukaryotic cell formed by the fusion of an egg and sperm?
Zygote
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What are the 3 stages of the cell cycle?
Interphase
:
DNA replication
and increase in number of
organelles
Mitosis
:
chromosomes
are pulled to each end of the cell and nucleus divides
Cytokinesis
: cytoplasm/cell membrane divides to form two
genetically
identical cells
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What happens during interphase?
DNA replication
and
organelle
increase
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What happens during cytokinesis?
Cytoplasm
/
cell membrane
divides
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What happens during mitosis in the cell cycle?
Chromosomes
pulled, nucleus
divides
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