Forensic Botany Flashcards

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1
Q

trade of protected species

A

illegal wildlife trade & the persistence of ‘plant blindness’

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2
Q

forensic biology - damage

A

can look at timelines based on the damage of plants

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3
Q

source of wood

A

associative evidence - locations, people, objects

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4
Q

forensic example of damaged botany

A

grass under car isn’t dead even though it was said to be there for 46 days

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5
Q

forensic examples of source of wood

A
  • looks at wood chips in head to see if they match bat used
  • fake antiques
  • took marks in wood
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6
Q

plant secondary metabolites as source of drugs & poisons

A
  • help protect the plant from disease
  • structural function
  • toxic surface to prevent leaves from pests
  • unintentional/ intentional
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7
Q

Ricin

A
  • poisonous glycoprotein
  • inactivates ribosomes in human cells
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8
Q

determining the source of drugs derived from plants

A
  • region supplying
  • DNA analysis
  • ID insects/pollen
  • stabel isotopes/trace alkaloids
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9
Q

forensic palynology

A

study of pollen & spores to inform legal investigations

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10
Q

when forensic palynology is used

A
  • seasonal
  • timing
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11
Q

where forensic palynology is used

A
  • geographic region
  • habitat
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12
Q

pollen

A

carries male gametes of flowering & cone bearing plants

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13
Q

spores

A

-the asexual reproductive bodies of ferns, mosses, fungi
- think sperm

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14
Q

special forensic aspects of pollen

A
  • can get DNA from pollen
  • highly resistant to decay
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15
Q

what do plants produce?

A

vast quantities of microscopic pollen & spores which they disperse with the help of animals, wind, and water

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16
Q

what is natures fingerprint of plants?

A

pollen

17
Q

forensic pollen studies

A
  • rarely attempted in the US
  • attempts in cold cases where the potential pollen evidence has been compromised by time & contamination
18
Q

current problem with forensic pollen studies

A
  • there are very few people who are trained to do forensic pollen studies
  • no jobs for people who are trained
  • very few training programs
19
Q

The OJ Simpson Case

A
  • forensic pollen evidence would have been very useful but was not employed
  • evidence suggested that the murderer hid among flowering bushes in front of the Simpson home waiting
  • if so, a pollen ‘fingerprint’ would have been left on the suspects clothing and would have linked the kille r