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)
A segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is _________________.
120
240
60
480
Antibodies in our body are complex_______________.
steriods
prostaglandins
glycoproteins
lipoproteins
Most diverse macromolecules, found in the cell both physically and chemically are _____________.
Proteins
carbohydrates
nucleic acids
lipids
The nitrogenous organic base purine occurring in RNA is _____________.
cytosine
thymine
guanine
uracil
Which is correct about nucleic acid?
DNA
RNA
DNA and RNA
spherosomes
In which one of the following groups, all the three are example of polysaccharides?
starch, glycogen, cellulose
sucrose, maltose, glucose
glucose, fructose, lactose
Galactose, starch, sucrose
In RNA, thymine is replaced by ____________.
adenine
Glycogen is a polymer of ________________.
galactose
glucose
fructose
sucrose
Amino acids are produced from _________________.
proteins
fatty acids
essential oils
α - keto acids