The phase of the cell cycle that occupies most of a cells life interphase
What occurs after cytokinesis is completed? G1
What is correct sequence of cell cycle G1, s, g2, mitosis, cytokinesis
Cells that are not dividing remain in the g1
What occurs in s phase Dna replication
The first 3 phases of the cell cycle are known as interphase
Mitosis is the process by which Nucleus divides
Mitosis forms cells that are Diploid identical
Normal cells become cancer cells when Cells do not respond to checkpoints
How many chromosomes are in the body cells of an organism that has a haploid number of 10 20
Somatic cells are Body cells diploid
Gametes are Sex cells haploid
Crossing over occurs during Meiosis Prophase 1
What provides new genetic combinations? Random fertilization Random alignment Crossing over
DNA is in the form of _____ when the cell is not dividing chromatin
Harmful cancer malignant
Checkpoints are checking for: Is cell big enough Are spindle fibers attached to chromosomes correctly Is DNA copied correctly
Harmless cancers benign
During what phase does the cell prepare for division G2
The failure of the chromosomes to separate during division is called: Nondisjunction
Signs of Cancer? Caution ABCD
What phase of mitosis do chromosomes become visible prophase
What is the correct sequence of events in Mitosis PMAT
How many pairs of chromosomes are present in body cells? 23
Differentiate between mitosis and meiosis Crossing over Two divisions Haploid 4 cells Produces gametes (sperm/egg)
Growth of new blood vessels to support tumors is called _________. angiogenesis
What is trisomy 21? Down Syndrome
What is monosomy X? Turners Syndrome
What is XXY Klinefelter syndrome
What two cells are found in the testicles? Leydig Sertoli
Identify the 3 glands that associate with the male reproductive system? Bulbourethral (Cowpers) Seminal vesicle Prostate
What is the pathway that sperm travel through the male reproductive tract? Semineferous tubules Epididymis Vas deferens urethra
Identify the 3 type of spongy tissue in the penis. Corporus cavernosus Corporus spongiosum Spongy urethra
3 layers of uterus Mucousa Muscularis serosa
Function of? Vagina Ovary Fallopian tube uterus
Sperm leave the body at ___ feet per second. 200
Name of the head of the sperm? acrosome
Outer portion of ovary cortex
Leading cause of death from cancer in men prostate
Which hormone acts on spermatogenesi? FSH – follicle stimulating hormone
Identify 2 muscle associated with testis and scrotum Dartos cremaster
Which cells in the testicles supports sperm development and secretes FSH sertoli
Which analogous structure? Vaginapenis Labia minora Clitoris Ovaries