BCH 5413: 1-4 TEST QUESTIONS
WITH ALL CORRECT ANSWERS
Name 3 characteristic of Z-DNA - Answer-* Left-handed helix
* 12bp per helical turn
* Major groove flattened, nearly gone
Fragile DNA is associated with - Answer-AT-rich cruciform
To increase the melting temperature of DNA, you need to increase which two?
a) bases
b) salt
c) phosphate
d) AT
e) coiling
f) GC - Answer-b) and f)
What does the genome consist of? - Answer-Chromosomes (linear DNA molecules with
many genes)
Exon and intron function - Answer-Exons are coding regions of the gene
Introns hold functional RNAs and micro RNAs
True or False? Alternative splicing can yield different proteins. - Answer-True
Does DNA move toward the negative or positive pole in gel electrophoresis? Do the
smaller or bigger fragments move faster through the gel? - Answer-Positive; smaller
As you increase the amount of micrococcal nuclease... - Answer-more and more
fragments will be brought down to smaller size.
What did Avery, McLeod, and McCartney do? - Answer-They showed that if DNA is
present, the non-pathogenic R-strain bacteria would transform into an S-strain.
What did Wilkins and Franklin do? - Answer-Using xray crystallography, they examined
the structure of DNA.
One turn of a DNA helix is ____ angstroms. - Answer-34
Ribose differs from deoxyribose by a single
a) C
WITH ALL CORRECT ANSWERS
Name 3 characteristic of Z-DNA - Answer-* Left-handed helix
* 12bp per helical turn
* Major groove flattened, nearly gone
Fragile DNA is associated with - Answer-AT-rich cruciform
To increase the melting temperature of DNA, you need to increase which two?
a) bases
b) salt
c) phosphate
d) AT
e) coiling
f) GC - Answer-b) and f)
What does the genome consist of? - Answer-Chromosomes (linear DNA molecules with
many genes)
Exon and intron function - Answer-Exons are coding regions of the gene
Introns hold functional RNAs and micro RNAs
True or False? Alternative splicing can yield different proteins. - Answer-True
Does DNA move toward the negative or positive pole in gel electrophoresis? Do the
smaller or bigger fragments move faster through the gel? - Answer-Positive; smaller
As you increase the amount of micrococcal nuclease... - Answer-more and more
fragments will be brought down to smaller size.
What did Avery, McLeod, and McCartney do? - Answer-They showed that if DNA is
present, the non-pathogenic R-strain bacteria would transform into an S-strain.
What did Wilkins and Franklin do? - Answer-Using xray crystallography, they examined
the structure of DNA.
One turn of a DNA helix is ____ angstroms. - Answer-34
Ribose differs from deoxyribose by a single
a) C
