Biology Chapter 8 Vocab
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Biology Chapter 8 Vocab
The DNA in eukaryotic cells wraps tightly around protiens called....
....Proteins are generally involved in controlling the activity of specific regions of the DNA.
Each half of a chromosome is called..
The constricted area of each chromatid is called...
...Are chromosomes that determine the sex of an organism, and they may also carry genes for other characteristics
All of the other chromosomes in an organism are called...
The two copies of each autosome are called...
A photomicrograph of the chromosomes in a dividing cell found in a normal human
Cells having two sets of chromosomes are said to be..
Human sperm cells and egg cells are..
...Is the division of a prokaryotic cell into two offspring cells
..Results in new cells with genetic material that is identical to that of the original cell
...Reduces the chromosomes number ny half in new cells
..Is the repeating set of events that make up the life of a cell
The time between cell divisions is called..
During Mitosis, or ....., The nucleus of a cell divides
...Is the division of a cytoplasm of the cell
First stage of interphase where offspring cells grow to mature size is called..
After cells have reached a mature size, they typically proceed into the next phase of interphase where the cell's DNA is copied, called...
...Represents the time gap following DNA synthesis and preceding cell division
Cells can also exit the cell cyle and enter into a state called...
...Is the first phase of mitosis
Two pairs of dark spots
In animal cells, each centrosome contains a pair of small, cylindrical bodies called...
...Made of microtubules radiate from the centrosomes in preparation for mitosis
..Serves to equally divide the chromatids between the two offspring cells during cells division
Disk shaped protein
... Extend from the kinetochore of each chromatid to one of the centrosomes
...Extend across the dividing cell from centrosome to centrosome
Second phase of Mitosis
During...., the chromatids of each chromosome seperate at the centromere and slowly move, centromere first, toward opposite poles of the dividing cell.
Fourth phase of mitosis
The area of the cell membrane that pinches in and eventually seperates the dividing cell into two cells in called...
In plant cells, vesicles formed by the Golgi apparatus fuse at the midline of the dividing cell, forming a membrane- bound cell wall called...
Meiosis produces haplois reproductive cells, called...
The pairing of homologous chromosomes, which does not occur in mitosis, is called..
Each pair of homologous chromosomes is called...
Portions of chromatids may break off and attach to adjacent chromatids on the homologous chromosome- a process called..
Crossing- over results in...
The random seperation of the homologous chormosomes is called..
In the development of sperm cells, a diploid reproductive cell divides melotically to form four haploid cells called..
Production of sperm cells called..
... Is the production of mature egg cells, or ova
The three other products of meiosis
.. Is the production of offspring from one parent
.. Is the production of offspring through meiosis and the union of a sperm and an egg