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BI 234 LIGHT MICROSCOPES EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED $10.49   Add to cart

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BI 234 LIGHT MICROSCOPES EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

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BI 234 LIGHT MICROSCOPES EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED bright field microscopy To observe killed stained specimens and naturally colored live ones; also used to count microorganisms dark field microscopy a special condenser is used so only the light reflected...

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  • November 9, 2024
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BI 234 LIGHT MICROSCOPES EXAM QUESTIONS AND

ANSWERS WITH COMPLETE SOLUTIONS VERIFIED


bright field microscopy

To observe killed

stained specimens

and naturally colored

live ones; also used to

count microorganisms

dark field microscopy

a special condenser is used so only the light reflected off the specimen enters the

objective.

specimen against a dark background.



To observe living,

colorless, unstained

Phase-contrast

transforms subtle changes in light waves passing through the specimen into differences

in light intensity, best for observing intracellular structures



Uses a special condenser that splits a

polarized light beam into

, two beams: one passes through the specimen, and

one of which bypasses the specimen; the

beams are then rejoined before entering

the oculars; contrast in the image results

from the interactions of the two beams



Living Things.

Differential interference

contrast (Nomarski)

Fluorescence

uses UV light

Confocal

Used UV lasers.

Transmission Electron Microscope (TEM)

What are the 5 a sexual methods prolaryotes used for reproduction?

Budding,

binary fission (most common),

snapping division

Spores

Viviparity

binary fission

Replicates chromosomes, elongates,splits off into two daughter cells. Identical genetic

make up as parents. Very quick process.

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