Mark ALL OF the statements that are true for DNA

a
bases held together by hydrogen bonds

b
bases are A, C, G and U

c
unzipped by helicase during replication

d
backbone of sugar molecule ribose and phosphate groups

e
found in the nucleus ofprokaryote cells

f
double helix

g
carries amino acids to ribosomes

h
bases are A, C, G and T

i
single helix

j
backbone of sugar molecule deoxyribose and phosphate groups