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14 Cards in this Set
- Front
- Back
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Why do multicellular organisms need mitosis? |
Growth and maintenance of cells and tissues. |
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Why do multicellular organisms need meiosis? |
Meiosis is required for reproduction. They need to become a haploid so that they can fuse with another haploid and produce genetically different offspring. |
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What happens when a cell becomes too large? |
The surface area to volume ratio is thrown off and the cell no longer has enough surface area to meet its needs. When it gets too big, it will divide. |
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How do daughter cells compare to their parent cells and each other? |
They are completely identical. |
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Comparing Meiosis vs Mitosis |
Mitosis = 2 Diploid Meiosis = 4 Haploid Daughter cells in Meiosis are genetically varied. |
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Differences between Somatic Cells and Gametes |
Somatic cells = diploid. N2. Identical daughter cells
Gametes = haploid. N1. Genetically varied daughter cells. Used for reproduction |
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What does "N" represent |
The number of copies of genetic information. |
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Differences between Chromosomes and Chromatin |
Chromatin = Packaged by special proteins Chromosomes = Condensed heavily. |
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Homologous Chromosome |
Chromosomes come in pairs. N2/Diploid |
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Chromatid |
Each of two headline strands that a chromosome divides into during cell division |
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Recombinant Chromatids |
A copy of another chromosomes that differs only slightly |
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Chromatin |
The material of which the chromosomes of organisms other than bacteria are made of. |
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Sister Chromatids |
Only applies when the identical copies are closely associated with one another and held together by a centimetre. When they move apart during Anaphase of Mitosis or Anaphase II of meiosis, they are called individual chromosomes |
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Homologous chromosomes carry... |
The same genes but sometimes carry different alleles |
