True or False
The nuclear envelope breaks down in prophase.
True
What happens in the G1 phase?
The cell grows
What is mitosis?
The division of a cell nucleus
__ is the collection of genes in a haploid cell or diploid cell
Genome
prokaryotic organisms are Sunflower and HIV.
False
What are the two major phases of the cell cycle?
Interphase and Mitosis
What is the first phase in the mitotic cell division process?
Prophase
What is the unit of heredity?
Gene
Proto-oncogenes are normal genes that, when mutated, become oncogenes.
True
At what phase each chromosome is made of two sister chromatids and is a duplicated chromosome. The
S phase
What happens to the mitotic spindle in Telophase?
It breaks down
How many pairs of chromosomes does a human somatic cell have?
23 Pairs
Triggers repair mechanisms is the only role of the p53 gene.
False
In the cell cycle, where is Interphase a part of in order?
G1, S, G2
During mitosis, which phase is the first phase prophase or prometaphase.
Prophase
How many chromosomes are in the human body
46
Tumor suppressor genes are genes that code for the positive regulator proteins.
False
What must be accessed at the “M” checkpoint of the cell cycle?
Attachment of the kinetochore to a spindle fiber.
What are the phases of mitosis? ( In order)
-Prophase
-Metaphase
-Anaphase
-Telophase
Name all the parts of a chromosome.
Centromere
-Sister chromatids
-P-arm/ petite arm
-Q-arm/ Que arm