The complex of DNA and protein that makes up a eukaryotic chromosome is properly called _____.
Chromatin
100
What are the three interphase parts?
G1 Phase
S Phase
G2 Phase
100
If a somatic human cell is just about to divide, it has _____ chromatids.
92
100
A _________ is a photograph of all of an individual's chromosomes.
karyotype
100
The person credited with first recognizing (in the 1860s) that living cells cannot arise spontaneously, but arise only from previously existing cells, is _____.
Rudolf Virchow
200
The _________ is a region in which sister chromatids are attached to one another in prophase.
Centromere
200
During interphase, the genetic material of a typical eukaryotic cell is dispersed in the nucleus as long strands of _________.
Chromatin
200
In a human skin cell that is going through the cell cycle, when do the centrosomes separate?
Prophase
200
At the end of telophase I of meiosis and the first cytokinesis, there are _____ haploid cells.
Two
200
What is the study of heredity that has been going on for 150 years?
Genetics
300
_________ refers to the division of the cytoplasm.
Cytokinesis
300
During what phase in the cell cycle would you find the most DNA per cell?
G2
300
The phase of mitosis during which the chromosomes move toward separate poles of the cell is _____.
Anaphase
300
Synapsis occurs during _____.
Prophase I
300
What differs in cytokinesis between plant and animal cell mitosis?
In animal cells the cytoplasm pinches and separates and in plant cells a cell plate forms in between the 2 daughter cells.
400
What are sperm and egg cells called?
Gametes
400
A biochemist measured the amount of DNA in cells growing in the laboratory and found that the quantity of DNA in the cells doubled in the _____.
S phase
400
At which stage of mitosis are chromosomes lined up in one plane in preparation for their separation to opposite poles of the cell?
Metaphase
400
What is the exchange of sister chromatid material during synapsis?
Crossing over
400
The generation of offspring from a single parent that occurs without the fusion of gametes is called ____
Asexual Reproduction
500
What are 4 sister chromatids called?
Tetrad
500
What percentage of time does interphase take up during the cell cycle?
90%
500
If a cell contains 60 chromatids at the start of mitosis, how many chromosomes will be found in each daughter cell at the completion of the cell cycle?
30
500
Individual chromosomes that carry genes derived from two different parents are ____________.
Recombinant chromosomes
500
An embryonic cell with the potential of developing into a gamete.