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Bio 1305 test three
baylor university nemec 1305
38
Biology
Undergraduate 1
11/17/2010

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Term
The cells that do not divide are stuck in
Definition
G1 phase of interphase
Term
the protein that makes up chromosomes
Definition
histones
Term
The mitotic spindle is composed of
Definition
microtubiles
Term
pairing and crossing over homologes
Definition
prophase I
Term
What leads to monosomy and trisomy
Definition
nondisjunction or aneupoloidy
Term
cell death
Definition
apoptosis
Term
The F1 generation is the cross of
Definition
two trubreeds
Term
Epistasis
Definition
phenotype of one gene is affected by another gene
Term
the exception to the law of independent assortment
Definition
linkages
Term
DNA is in
Definition
the nuclues, mitochondria and chloroplasts
Term
Binary fission
Definition
the process in which prokaryotes divide
Term
ori
Definition
point on chromosome where replication starts
Term
ter
Definition
the site where replication ends
terminus
Term
the cell cycle is
Definition
mitosis, cytokensis and interphase
Term
interphase
Definition
cell nucleus is visible and normal cell functions occur
Term
interphase is
Definition
g1 s g2
Term
G1
Definition
cell is preparing for S phase, each chromosome is single, unreplicated.
Term
R
Definition
restriction point between G1 and S
Term
S phase
Definition
DNA replication
Term
G2 phase
Definition
preparations for mitosis
synthesizing components of the microtubules that will move the chromatids
Term
CDK
Definition
cyclin-dependent kinsases
creates phosphorylation of certain proteins and induce cell division
Term
Cytokensis differences in animal and plant cells
Definition
animal cells: pinches off
plant cells: cell plate walls off the section
Term
body cells
Definition
somatic cells
Term
synapsis
Definition
the sharing process between chromosomes in meiosis
Term
oncogene
Definition
proteins are positive regulators in cancer cells
Term
tumor suppressors
Definition
negative regulators in both cancer and normal cells
in cancer cels they are inactive
Term
pleiotropic
Definition
when a single allele has more than one distinguishable phenotype
Term
carries urine from the bladder to the urethral orifice
Definition
urethra
Term
small yellow glands in fat on top of the kidneys
Definition
adrenal glands
Term
collects and stores sperm cells
Definition
epididymis
Term
brown glands located to the right and helf of the urinary bladder
Definition
seminal vesicles
Term
white gland below the bladder
Definition
prostate gland
Term
used to accommodate a litter or more than one offspring
Definition
duplex uterus
Term
simplex uterus
Definition
single chamber for an embryo
Term
carries blood through the lungs for oxygenation and back to the heart
Definition
pulmonary circulation
Term
systemic circulation
Definition
moves blood through the body after it has left the heart
Term
serve the heart muscle
Definition
coronary arteries
Term
first visible artery branching from the aorta
Definition
brachiocephalic artery
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