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5 pieces of evidence that might be obtained at a crime scene that could help solve the crime?
DNA
Finger Print
Footwear impressions
Digital evidence
Look at blood
What are the four bases of DNA? Which are purines/pyrimidines? Which pair together?
Adenine (A), Guanine (G), Cytosine (C), Thymine (T). A and G are pyrimidines; T and C are purines. A pairs with T and G pairs with C.
What do restriction enzymes do?
Cut DNA at specific sequences
(Defend bacteria against viral infections by destroying foreign DNA)
What is the purpose of gel electrophoresis? Which way will DNA travel?
Separates DNA RFLPS by SIZE
DNA is a negatively charged molecule and will travel towards the positive electrode.
Type 1 diabetes
Glucose increases little to no insulin
Type 2 diabetes
More than enough insulin
Negative feedback loop
reduces the change
Positive feedback loop
amplifies change
Dehydration synthesis
reactions build molecules up and generally requires energy
Hydrolysis reactions
break down molecules down and generally release energy
Monomers of Carbohydrate
Monsacharides
Monomers of protein
amino acids
Monomers of lipids
fatty acids
Osmosis
the movement of water across a membrane
Hypotonic soln
Solute outside of a cell is less than solute in the cell
water goes into cell, cells can lyse (burst)
Hypertonic Soln
Solute outside of cell is more than solute in the cell
water goes out of the cell, cell shrinks
Isotonic Soln
Solute in = Solute out
water makes equally shape stays the same
Solution
solvent + solute = soln
Solvent
does the dissolving (water)
Solute
thing that is dissolving (salt)
Explain why diabetics are constantly thirsty and urinating so often
High blood sugar levels lead to increased urination causing dehydration and a thirst sensation
Normal RBC
full circle
Sickle
half crescent
What complications arise bc of this different for RBC and Sickle RBC.
Normal red blood cells transport oxygen throughout the body. Sickle cells are crescent-shaped and rigid due to a genetic mutation affecting hemoglobin.
How is anemia diagnosed
through a complete blood count test (CBC)
4 components of blood
Plasma, Red blood cells (erthrocytes), White blood cells (leukocytes) Platlets ( thrombocytes)
Plasma
carriers nutrients, hormones, proteins, and more
erythrocytes
takes oxygen from lungs to body tissues
Leukocytes
cells that fight off infections/pathogens
thrombocytes
cells that help in blood clotting
What are the 4 components of blood
A gives to A, AB
B gives to B, AB
AB only give to AB
O gives to all
What is a karyotype
a picture of someones chromosomes, sex chromosomes are always at the end female is xx male is xy
This process makes new body cells for repair and replacement
mitosis
This process makes sex cells of sperm and egg
meiosis
Each body cell has blank chromosome
46
Each gamete has blank CS
23
What does HIPAA stand for and what does it say
a law that protects personal health information and medical records
Accountability Act- Health Insurance Portability
Describe the inheritance pattern of sickle cell
autosomal recessive
Which heart arteries and veins don follow the usual oxygen/deoxygenated blood pattern, and why?
the pulmonary arteries carries deoxygenated blood away from the heart to the lungs, and the pulmonary veins carry oxygenated blood from the lungs back to the heart. This is different bc arteries usually carry Oxygenated blood and veins carry Deoxygenated.
heart rate
the number of times your heart beats in a minute
blood pressure
the force of your blood pushing against the walls of your arteries as your heart pumps blood throughout your body
What does EKG measure
the electrical activity of the heart
what are some conditions that can be diagnosed by interpreting an EKG
arrhythmias coronary artery disease, heart attacks, heart failure, and heart value disease
what is the function of cholesterol in the body
helps build cells, make hormones, produce vitamin D and digest fats.
HDL
good cholesterol because it helps remove excess cholesterol from arteries
LDL
carries cholesterol from the liver to the body's tissues
what is familial hypercholesterolemia
a genetic disorder characterized by high levels of LDL cholesterol in the blood
how is hypercholesterolemia inherited
inherited in a autosomal dominant pattern meaning you can only need one copy of the gene from your parent to have it
describe the process of PCR
method to make many copies of a specific DNA segment. It involves heating DNA to separate it, adding primers that stick to the targe segment, and using an enzyme to build new copies
What is the purpose of PCR
creating millions of copies from a smaller amount of starting material for further analysis
what is a RFLP
differences or variations among people in their DNA sequences at sites reconized by restriction enzymes
Gram positive
has more peptidoglycan it can hold the color more (color)
Gram negative
less peptidoglycan, can't hold as much color
How can viruses be prevented
frequent hand washing
hand sanitizer
avoid touching surfaces/face
match the organs to its systom
Blood, Heart
Cardiovascular
Match the organ to it's system
Bladder, Kidneys, Urethra
Urinary
Match the organ to it's system
Lungs,Trachea
Respiratory system
Match the organ to it's system
pancreas, gallbladder
Digestive
Match the organ to it's system
brain, eye, teeth
nervous
Match the organ to it's system
Lymph Node, Spleen
immune