Mitosis Flashcards
When the mother cell passes DNA to daughter cells the DNA is
Identical
This type of organism divides by binary fision
Prokaryotes
What is essentially the same of the cell division process in both eukaryotes and prokaryotes
Duplication and segregation of genetic information into daughter cells ; division of cellular content
How many chromosomes are in each human cell
46 chromosomes
How many pairs of chromosomes do humans have
23
What are chromosomes
Strand of DNA that is encoded with genes and is composed with proteins to help hold shape together
Name the condition when a human embryo is missing a chromosome
Monosomy
Name the condition where human embryo have an extra chromosome
Trisomy
What is the haploid number in humans
23
What is the diploid number in humans
46
This term is used when referring to the maternal and paternal chromosomes
Homologous
These types of cells are typical and usually diploid and are not directly involved with reproduction
Somatic cells
Chromosomes are composed of __________, a complex of DNA and protein when it is not in the process of dividing
Chromatin
A positive charged protein that attracts the DNA to coil and tightly bound to it
Histone proteins
The complex of DNA and histone proteins is called
Nucleosome
The tight coil of DNA wrapped in the nucleosomes is
Solenoid
After the nucleosomes are coiled into the solenoid the solenoid then organizes these______
Chromatin loops
Binary fission
1-2 DNA replicates
3 cell elongates
4 -5 septation
Diploid means
A cell has two set of chromosomes
During which phase of mitosis do the cohesion holding the chromatids together break down allowing the chromotids to spit
Anaphase
During which phase of mitosis do the chromatids attach to the spindle by their kinetochores
Prometaphase
This is unrestrained , uncontrolled growth of cells in animals
Cancer
Three types of treatment for cancer
Radiation
Chemotherapy
Surgery
Consider the G1 checkpoint . What molecules must the cell have accumulated to complex with Cdc2 to pass through this checkpoint
G1 cyclins