DNA and Repro
This is the term for uncontrolled cell growth.
What is cancer?
In this phase of mitosis, the events include the formation of the mitotic spindle.
What is prophase?
This stage preceeds both mitosis and meiosis.
What is interphase?
This is the amount of generations required to create a plant that exhibits polyploidy.
What is 1 generation?
This stage of cell division is easily determined as the cell appears as a figure 8 under the microscope.
What is cytokinesis?
This referes to "like begets like."
What is asexual reproduction?
At this stage, the centromeres of each chromosome come apart.
What is anaphase?
Only this cell cycle involves crossing over.
What is meiosis?
This is the amount difference between the children born with down syndrome in women aged 45 vs the down syndrome children born to women aged 40.
What is 3x, or 300%?
The resulting number of cells after a parent cell undergoes two mitotic divisions.
What is four?
This feature accounts for the differences in plant and animal cell division.
What is a cell wall?
This type or reproduction increased genetic variability.
What is sexual?
These are the most common types of organisms to produce polyploidy.
What are flowering plants?
This is the region where two homologous chromosomes come together and cross over.
What is a chiasma?
When members of a chromosome fail to separate, this occurs.
What is nondisjunction?
Phase in which the nuclear envelope re-forms.
What is telophase?
The type of reproduction that creates genetically identical offspring by a single parent, without the participation of sperm and egg.
What is asexual reproduction?
Prior to mitosis and after S phase, each chromosome of a eukaryotic cell consists of a pair of identical structures called this.
What are sister chromatids?
These help maintain the structure of chromosomes and control the activity of genes.
What are proteins?
In this phase of mitosis the chromosomes line up on a plane equidistant from the two spindle poles.
What is metaphase?
This type of cell often fails to display density-dependent inhibition.
What is a cancer cell/tumor?
This is the result of independent orientation in cells.
What is variation or an increase in the possible numbers of characteristics?
What is membrane-enclosed?
Antimitotic drugs target microtubules, which are present greatest during this stage of cell division.
What is prophase?
These are components of the cell cycle control system that operate independently of other factors, and help initiate and promote cellular development and growth.
What are growth factors
In prokaryotes cell division is this often, while in eukaryotes it is this often.
What is rare and frequent?
In reference to the chromosomal amount in each cell, this type of cell is created during mitosis.
What is diploid?
In comparison to prokaryotes, eukaryote chromosome are much more this.
What is complex/bigger?
The term for two chromosomes in a nucleus that carry genes controlling the same inherited characteristics.
What are homologous chromosomes?
The formation of this feature distinguishes plant cells from animal cells.
What is a cell plate?
This is the main factor responsible for density-independent inhibition.
What is physical contact of cell-surface proteins between adjacent cells?
Cell growth and preparation for division occurs during this phase of the cell cycle.
What is interphase?
During this stage of the cell cycle, the chromosomes are duplicated.
What is the S phase?
In reference to the chromosomal amount in each cell, this type of cell is created during meiosis.
What is haploid?
What is turner syndrome?
This type of mutation occurs when a chromosome fragment breaks off and then reattaches to the original chromosome but in the reverse direction.
What is an inversion?