Podcast
Questions and Answers
A molecule of DNA wrapped around ______ that becomes visible during prophase of cell division.
A molecule of DNA wrapped around ______ that becomes visible during prophase of cell division.
histones
Cells that have ______ chromosome in their nuclei.
Cells that have ______ chromosome in their nuclei.
two
Chromosomes that have the same genes in the same places are called ______ chromosomes.
Chromosomes that have the same genes in the same places are called ______ chromosomes.
homologous
Cell division is the process by which biological cells ______.
Cell division is the process by which biological cells ______.
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Eukaryotic organisms use ______ to create sex cells (gametes).
Eukaryotic organisms use ______ to create sex cells (gametes).
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All three types of cell division begin with ______ replication.
All three types of cell division begin with ______ replication.
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Cell cycle consists of 2 phases —Long Non dividing growing phase (______) and Short dividing M phase (Mitosis and cytokinesis).
Cell cycle consists of 2 phases —Long Non dividing growing phase (______) and Short dividing M phase (Mitosis and cytokinesis).
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Mitosis is the process of cell division that forms two genetically identical ______ from one parent cell nucleus.
Mitosis is the process of cell division that forms two genetically identical ______ from one parent cell nucleus.
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Human body cells have ______ chromosomes.
Human body cells have ______ chromosomes.
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Meiosis is the process of cell division that halves the chromosome number and makes ______.
Meiosis is the process of cell division that halves the chromosome number and makes ______.
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The first division of meiosis generates most of the ______.
The first division of meiosis generates most of the ______.
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The diploid number of chromosomes found in normal body cells is ______.
The diploid number of chromosomes found in normal body cells is ______.
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Homologous chromosomes are the same size, shape, have the centromere in the same place, and have the same ______.
Homologous chromosomes are the same size, shape, have the centromere in the same place, and have the same ______.
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During Prophase I, homologous chromosomes line up with each other and swap small amounts of their ______.
During Prophase I, homologous chromosomes line up with each other and swap small amounts of their ______.
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Without recombination and crossing over, all alleles on a single chromosome would be inherited ______ together.
Without recombination and crossing over, all alleles on a single chromosome would be inherited ______ together.
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This system increases our capacity to respond to ______ change.
This system increases our capacity to respond to ______ change.
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The ______ event of Prophase I is when chromosomes condense, and crossing over occurs.
The ______ event of Prophase I is when chromosomes condense, and crossing over occurs.
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In Meiosis, the number of daughter cells made are ______.
In Meiosis, the number of daughter cells made are ______.
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In ______ cell division, a somatic cell divides once.
In ______ cell division, a somatic cell divides once.
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In ______ cell division, a reproductive cell divides twice.
In ______ cell division, a reproductive cell divides twice.
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During ______, chromatin condenses into discrete chromosomes, the nuclear envelope breaks down, and spindle fibers form at opposite poles of the cell.
During ______, chromatin condenses into discrete chromosomes, the nuclear envelope breaks down, and spindle fibers form at opposite poles of the cell.
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During ______ I, pairs of homologous chromosomes line up closely together forming what is called a ______.
During ______ I, pairs of homologous chromosomes line up closely together forming what is called a ______.
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A tetrad consists of four ______ (two sets of sister chromatids).
A tetrad consists of four ______ (two sets of sister chromatids).
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Sister chromatids align at the ______ plate (a plane that is equally distant from the two cell poles).
Sister chromatids align at the ______ plate (a plane that is equally distant from the two cell poles).
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During anaphase, sister chromatids separate and begin migrating toward opposite ______ of the cell.
During anaphase, sister chromatids separate and begin migrating toward opposite ______ of the cell.
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Homologous chromosomes migrate toward opposite ______ of the cell during anaphase I.
Homologous chromosomes migrate toward opposite ______ of the cell during anaphase I.
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Both processes have a growth period called ______, in which a cell replicates its genetic material and organelles in preparation for division.
Both processes have a growth period called ______, in which a cell replicates its genetic material and organelles in preparation for division.
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This happens in ______ II of meiosis.
This happens in ______ II of meiosis.
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In mitosis, cytokinesis happens at the end of ______.
In mitosis, cytokinesis happens at the end of ______.
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Each cell produced in meiosis is ______ containing one-half the number of chromosomes as the original cell.
Each cell produced in meiosis is ______ containing one-half the number of chromosomes as the original cell.
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The resulting daughter cells in meiosis contain different combinations of genes due to ______ as a result of crossing over.
The resulting daughter cells in meiosis contain different combinations of genes due to ______ as a result of crossing over.
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Prophase I lasts longer than ______ of mitosis.
Prophase I lasts longer than ______ of mitosis.
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In prophase I, pairs of homologous chromosomes line up closely together forming what is called a ______.
In prophase I, pairs of homologous chromosomes line up closely together forming what is called a ______.
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The resulting daughter cells in mitosis are genetic ______ (they are genetically identical).
The resulting daughter cells in mitosis are genetic ______ (they are genetically identical).
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