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BIO 111 lab
labs 9-13
10
Biology
Undergraduate 1
05/03/2010

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Term
Chromosome
Definition
A cellular structure carrying genetic material. Each chromosome consists of one very long DNA molecule and associated proteins
Term
Diploid
Definition
a cell containing two sets of chromosomes (2n). One set inherited from each parent
HAVING TWO COPIES OF EACH CHROMOSOME, PAIRED CHROMOSOMES
Term
Gamete
Definition
a haploid reproductive cell such as egg or sperm. Gametes unite during sexual reproduction to produce diploid zigote
Term
Cytokinesis
Definition
the division of the cytoplasm to form two separate daughter cells immediately after mitosis, meiosis I, and meiosis II
Term
Tetrad
Definition
the four resulting chromatids
Term
Why do cells divide?
Definition
living cells must often create new cell to grow or heal, also by dividing they increase efficiency of moving materials into cells (cells that grow too large no longer have enough surface area to take in nutrients and remove waste).
Cells divide themselves to reproduce, grow, and repair
Term
An organism with 8 pairs of chromosomes has how many total chromosomes?
How many chromosomes in each of its gametes?
Definition
16 total chromosomes.
in each of its gametes 8 chromosomes
Term
Chromosomes replicate during what part of the cell cycle?
Definition
Interphase stage S
Term
Meiosis occurs in what organs of the human body?
Definition
in gamete forming cells
Term
Haploid number
Definition
Number of unpaired chromosomes
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