The basic unit of nucleic acid is ______________.
purine, pyrimidine and phosphate
purine, sugar and phosphate
nitrogen base, sugar and phosphate
pyrimidine, sugar and phosphate
Antibodies in our body are complex_______________.
steriods
prostaglandins
glycoproteins
lipoproteins
Amino acids are produced from _________________.
proteins
fatty acids
essential oils
α - keto acids
Which one contains four pyrimidine bases?
GATCAATGC
GCUAGACAA
UAGCGUAA
TGCCTAACG
Most diverse macromolecules, found in the cell both physically and chemically are _____________.
Proteins
carbohydrates
nucleic acids
lipids
Which is wrong about nucleic acids?
DNA is single stranded in some viruses
RNA is single stranded occasionally
Length of one helix is 45 Å in B -DNA
One turn of Z - DNA has 12 bases
DNA is composed of repeating units of ________________.
ribonucleosides
deoxyribonucleosides
ribonucleotides
deoxyribonucleotides
RNA does not possess ________________.
adenine
uracil
thymine
cytosine
The nitrogenous organic base purine occurring in RNA is _____________.
guanine
Which is not consistent with double helical structure of DNA?
A = T, C ≡ G
Denisty of DNA decreases on heating
A + T/C + G IS NOT CONSTANT
Both (a) and (b)
