Term
| What are the two types of cells? |
|
Definition
| Somatic cells & sex cells |
|
|
Term
| What is the most common cell left at a crime scene? |
|
Definition
|
|
Term
|
Definition
| Erythrocytes (red blood cells), leukocytes (white blood cells), and platelets. |
|
|
Term
| Where is nuclear DNA obtained from in the blood? |
|
Definition
| Leukocytes (white blood cells), NOT erythrocytes (rbcs). |
|
|
Term
| What is the most common leukocyte for DNA? |
|
Definition
| Neutrophil - it is the most numerous |
|
|
Term
|
Definition
| Leukocyte with a multi-lobed nuclei, light granules in its cytoplasm, and a light purple hue under staining. Often one end of the nucleus has a slight pertrusion. |
|
|
Term
|
Definition
| Bi-lobed nucleus with reddish-orange granules under staining |
|
|
Term
|
Definition
| Staining that allows us to diferentiate between types of white blood cells |
|
|
Term
|
Definition
| Nucleus is usually completely overshadowed by purple (under staining) granules. |
|
|
Term
|
Definition
| Circulating agranulocytes with a u-shaped nucleus. |
|
|
Term
|
Definition
| Agranulocyte with vaculoes that gets into tissue and is responsible for engulfing stuff to destroy |
|
|
Term
|
Definition
| Gives rise to B-cells and T-cells. Agranulocyte with more nucleus than cytoplasm / a huge nucleus. |
|
|
Term
|
Definition
| Agranulocyte that matures into antibodies. |
|
|
Term
| What do T-Cells and B-cells do? |
|
Definition
| They can only call attention to invasive particles. They cannot kill anything. |
|
|
Term
| What do hyper T-cells do? |
|
Definition
| They are attracted to the B-cels and these cytotoxic T-cells actually do the killing. |
|
|
Term
| What does hair consist of? |
|
Definition
|
|
Term
| What is the hair root made of? |
|
Definition
| The medulla, cortex, and cuticle. |
|
|
Term
|
Definition
|
|
Term
| What is the anagen phse and how long does it last? |
|
Definition
| The growing phase; 2 - 8 years |
|
|
Term
| What is the catagen phase and how l |
|
Definition
|
|
Term
| What is the telogen phase and how long does it last? |
|
Definition
| Growth cycle ends at this resting phse in 2 - 4 months |
|
|
Term
| What is the rate of hair loss? |
|
Definition
|
|
Term
| How is hair used as a source of DNA? |
|
Definition
| PCR lead to more productive analysis. mtDNA isolation comes from roots & shafts. Nuclear DNA is preferred, but it has to come from plucked hair with root. Naturally shed hair does not normally contain the DNA. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Lay down calcium / bown initially |
|
|
Term
|
Definition
| Form osteoblasts that are stuck in te bone. Living bone cells. |
|
|
Term
|
Definition
| Involved in the break-down of bone. |
|
|
Term
| What is sanding used for? |
|
Definition
| It is used on bones to reduce the potential of comingled remains, adhering inhibitors, and bacterial contamination. |
|
|
Term
|
Definition
| Deciduous / primary teeth vs. Secondary dentition / permenant dentition |
|
|
Term
|
Definition
| Part of teeth without cells |
|
|
Term
| Where is the DNA in the tooth? |
|
Definition
|
|
Term
|
Definition
| The tooth is to be sanded to prevent contamination and drilled into |
|
|
