Biology Ch. 8
Not visible in the cell during interphase; at the beginning of cell division, DNA and the proteins associated with it coil into this structure.
An egg has 23 chromosomes. Is it haploid or diploid?
When the cell breaks into two; the process during cell division in which the cytoplasm divides
When genetic segments of information are swapped when the chromosomes are next to each other
A point where the two chromatids of a chromosome are attached; where spindle fibers and microtubules attach to the chromosome
Phase of mitosis in which chromosomes line up on the equator of the cell
Phase in which chromosomes get split at the centromere
Meiosis results in ____ the number of chromosomes.
Phase in which the nuclear membrane begins to form
When one cell divides into two; the process during which the nucleus of a cell is divided into two nuclei
Phase of mitosis in which chromatin draws together to create chromosomes
Membrane that breaks down during prophase
When a sperm and egg meet (46 chromosomes), is the cell haploid or diploid?
The uncontrolled, unregulated cell growth and reproduction
A _________ in the amount of genetic material occurs in meiosis.
Phase of cellular division that produces reproductive cells; time between cell divisions
Chromosomes that are similar in size, shape, and genetic content
One gamete is formed.
The chromosomes not directly involved in determining the sex of an individual
The repeated sequence of growth and division during the life of a cell
An organism's reproductive cells, such as sperm or egg cells
The two exact copies of DNA that make up each chromosome
Chromosomes that contain genes that will determine the sex of an individual
When a cell contains one set of chromosomes
Cell structures made of individual microtubule fibers that are involved in moving chromosomes during cell division
A pairing of homologous chromosomes that occurs in meiosis but not in mitosis
When a cell contains two sets of chromosomes
A photo of the chromosomes in a dividing cell, arranged by size
Helps maintain the shape of the chromosome and aids in the tight packaging of DNA
Generally involved in controlling the activity of specific regions of the DNA
Between cell divisions, the DNA in a eukaryotic cell is uncoiled and spread out in this form
How many of the 46 human chromosomes are autosomes?
If diploid=16, then haploid=_.
G1 phase, G2 phase, and S phase are stages of __________.
Which part of IPMAT is not a part of cell division?
A form of asexual reproduction in bacteria/prokaryotes
In eukaryotic cells, DNA is copied in this phase of the cell cycle.
Phase in which cells exit from the cell cycle
G1 phase, S phase, G2 phase, mitosis, cytokinesis
5 main stages of the cell cycle
Prophase, metaphase, anaphase, telophase
4 stages of mitosis
A pair of homologous chromosomes during prophase I of meiosis
The random separation of homologous chromosomes during anaphase I
Haploid offspring cells
Separates chromatids into opposite poles of the cell
1 haploid gamete
What is produced when a diploid reproductive cell divides meiotically in oogenesis
Crossing-over and independent assortment
2 ways in which genetic recombination occurs during meiosis
2 haploid gametes
Products of meiosis I
4 haploid offspring cells
Products of meiosis II
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