DOC CHE 1 Flashcards

(35 cards)

1
Q

are specialized proteins
produced by the immune system in response
to the presence of foreign substances called
antigens.

A

aB

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2
Q

are molecules (often
proteins or carbohydrates) that are recognized
by the immune system as foreign or non-self.

A

Ag

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3
Q

measures the direct interaction

between Ag and Ab in vitro

A

Primary binding tests

(ELISA, IFA, RIA)

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4
Q

measures the consequences
of interaction between Ag and Ab in vitro

A

Secondary binding tests

(Agglutination,
CFT, Precipitation, Neutralization tests)

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5
Q

measures Ag and Ab

interactions in vivo (in body)

A
  1. Tertiary binding tests
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6
Q

two main ways of performing ELISA

A

Double antibody technique, to detect antigen
2. Indirect technique, to detect and assay antibody.

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7
Q

how many uL in CHW

A

10 ul then 3 drops buffer

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8
Q

how many uL for BP testing

A

20 Ul diluted sa buffer

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9
Q

qPCR uses a fluorescent Fluorescent dye
dye that only fluoresces
when bound to

A

double
stranded DNA (dsDNA).

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10
Q

The cycle at which fluorescence is first
observable above background is called

A

Ct for cycle threshold

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11
Q

In a PCR, the amount of target sequence
doubles every cycle. This means that if a
reaction reaches Ct one cycle earlier than
another reaction, it is expected to have

A

started
with twice as much target sequence.

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12
Q

If there is a two-cycle difference, you expect a
____ fold difference in starting DNA

concentration. A three-cycle difference, ____ fold and so on.

A

4
8

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13
Q

why use nuclease free water /

A

Nucleases such as DNAses and RNAses are enzymes that cleave DNA and RNA strands into smaller fragments, and if present can actively degrade DNA in samples, DNA extracts, reagents, PCR products and primers.

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14
Q

Brings the capillaries of the allanotic
into direct contact with the shell
membrane allowing calcium
reabsorrption

A

chorion

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15
Q

Embryonic respiratory organ

A

allantois

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16
Q

Absorbs albumen
Absorts calsium from the shell for the structural
needs of the embryo

17
Q

provides Respiration and pressure
adjustment

18
Q

Protective cushion during
embryonic development

19
Q

Nutriment (protein source)
for the embryo

20
Q

term use for in vitro cultivation, maintenance and propagation of cells isolated from
cells, tissues or organs in an appropriate environment or medium separate from the parent
organism

A

tissue culture

21
Q

type of cell culture

A

primary cells - direct from donor tissues
cell lines - from clinical tumors

1. definite division
2. indefinite division

22
Q

cell morphology that grows in suspension vs grown attached to substrate

A

spherical

polygonal, fibroblastic

23
Q

incubator temp for cell cul;ture

A

37 mammalian
41 avian

24
Q

what type of cell is chicken embryo

A

fibroblastic cells

25
protein coat of virus
capsid
26
what virus: allantoic route
INAM | influenza, mumps, ND, Avian. adenovirus
27
what virus: yolk sac inoculation
herpes simplex v
28
what virus: amniotic inoculation
IM | influ, mumps
29
what virus: chorioallantoic membrane
Herpes pox rous sarcoma
30
components of hemagglutination reaction
bacteria, RBCs
31
why: Resuspend pellet in 13.5mL rpmi (medium) and 1.5mL FB (fetal bovine serum)
to inactivate enzyme and provide nutrients
32
function if Fetal bovine serum
media for cell growth, attachment and proliferation
33
# Primer-probe combinations PEDV RNA probe = ___
FAM fluorescence
34
TGEV RNA probe = ___
Quasar ® 670/Cy®5 fluorescence
35
Heterologous RNA control = ___
HEX fluorescence