Experimental Cell Biology Flashcards
(9 cards)
In situ hybridisation ISH
-chromosome 5 at metaphase labelled with 6 different DNA probes
Hershey and CHase
1952
In situ hybridisation ISH
-chromosome 5 at metaphase labelled with 6 different DNA probes
Single stranded RNA molecules
-northern blotting
Double stranded DNA fragments
-southern blotting (must be denatured first)
PCR
step 1 : heat to separate strands
step 2: hybridisation of primers
steop 3: DNA synthesis from primers
first cycle produces two double-stranded DNA molecules
Second cycle
produces 4 double-stranded DNA molecules
Prophase
-replicated chromosomes condense
metaphase
chromosomes are aligned at the equator of the spindle
-microtubules attach sister chromatids to opposite poles of the spindle