Biology 1201 exam 4 CORRECT 100%
Centromeres - ANSWERattaches 2 sister chromatids
Kinetochores - ANSWERattachment for microtubules on spindle
Chromatids - ANSWER2 copies of duplicated a chromosome
Spindle Apparatus - ANSWERmicrotubules extend away from centrosomes,
microtubules lengthen
Why are there checkpoints? - ANSWERFor stop/go cycles
What is G1, G2, and M checkpoints used to check? - ANSWERG1=To see if DNA is
damaged
G2=To see if DNA is properly regulated
M=To see if the spindle assembly/chromosome alignment is correct
What occurs in G1, S, G2 phases? - ANSWERG1= synthesis of cell components
S=DNA synthesis(Doubles genetics materials)
G2=centrioles replicate/ cytokinesis structure established
What is G0? - ANSWERNon-dividing state
What is the purpose of the different types of cell division? -
ANSWERMitosis=produce 2 diploid daughter cells(Identical, Somatic)
Meiosis=cell division for gamete production/ cells within 1n chromosomes
What is haploid and diploid? - ANSWERHaploid=1 set (1n) from each parent
Diploid=2 sets (2n) from each parent
What did Avery, Macleod and McCarty discover? - ANSWERDemonstrated that DNA
is a transforming principle
Who discovered bacteriophages? - ANSWERHershey and Chase (T2 virus, the one
that looks like an alien ship)
What did Mirsky do? - ANSWERRealized the constancy of DNA in somatic cells
Who discovered the A/T and G/C ratios? - ANSWERChargaff
What information was available to watson and Crick that helped them correctly
model the structure of DNA? - ANSWER-Chargaff's Rules
-Wilkinsons and Franklin's x-ray crystallography data showing that DNA was a
double helix of uniform width
What is meant by anti-parallel? - ANSWERThe 5' and 3' run in opposite directions
Centromeres - ANSWERattaches 2 sister chromatids
Kinetochores - ANSWERattachment for microtubules on spindle
Chromatids - ANSWER2 copies of duplicated a chromosome
Spindle Apparatus - ANSWERmicrotubules extend away from centrosomes,
microtubules lengthen
Why are there checkpoints? - ANSWERFor stop/go cycles
What is G1, G2, and M checkpoints used to check? - ANSWERG1=To see if DNA is
damaged
G2=To see if DNA is properly regulated
M=To see if the spindle assembly/chromosome alignment is correct
What occurs in G1, S, G2 phases? - ANSWERG1= synthesis of cell components
S=DNA synthesis(Doubles genetics materials)
G2=centrioles replicate/ cytokinesis structure established
What is G0? - ANSWERNon-dividing state
What is the purpose of the different types of cell division? -
ANSWERMitosis=produce 2 diploid daughter cells(Identical, Somatic)
Meiosis=cell division for gamete production/ cells within 1n chromosomes
What is haploid and diploid? - ANSWERHaploid=1 set (1n) from each parent
Diploid=2 sets (2n) from each parent
What did Avery, Macleod and McCarty discover? - ANSWERDemonstrated that DNA
is a transforming principle
Who discovered bacteriophages? - ANSWERHershey and Chase (T2 virus, the one
that looks like an alien ship)
What did Mirsky do? - ANSWERRealized the constancy of DNA in somatic cells
Who discovered the A/T and G/C ratios? - ANSWERChargaff
What information was available to watson and Crick that helped them correctly
model the structure of DNA? - ANSWER-Chargaff's Rules
-Wilkinsons and Franklin's x-ray crystallography data showing that DNA was a
double helix of uniform width
What is meant by anti-parallel? - ANSWERThe 5' and 3' run in opposite directions
