pg. 151
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| centromere | Two chromatids are attached using this.
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| chromatid | Each half of the chromosome is called this.
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| histones | Proteins that DNA coils around.
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| chromatin | The less tightly coiled DNA-protein complex that appears when DNA is preparing to replicate.
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| chromosomes | Rod-shaped structures made of DNA and proteins.
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| sex chromosomes | These can be either X or Y in many organisms.
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| autosomes | In the human, 44 of the 46 are these.
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| homologous chromosomes | Two copies of each autosome are said to be this. They are the same size, shape, and carry the same genes.
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| karyotype | A photomicrograph of the chromosomes in a normal dividing cell.
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| diploid | Cells having two sets of chromosomes.
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| haploid | Sperm and egg cells are said to be this since they only have one chromosome of each homologous pair and only one sex chromosome.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
jensenc
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