Worksheets1.5 DNA&RNA
Total questions: 10
Worksheet time: 19mins
Which is the monomer for nucleic acids?
amino acid
fatty acids & glycerol
nucleotide
monosaccharide
The phoshodiester bond in DNA or RNA is formed between
two nitrogenous bases
two sugars
a sugar and a nitrogenous base
a sugar and a phosphate
If there are 23 nucleotides with Adenine in DNA molecule, how many nucleotides with Guanine?
23
47
54
27
The scientists who proposed the double helix model of DNA are
Singer and Nicholson
Watson and Crick
Meselson and Stahl
Rosalind Franklin
FIGURE shows a nucleotide found in RNA. Which is TRUE about molecule X, Y and Z?
X = Phosphate group Y = Deoxyribose sugar Z = Nitrogenous base
X = Phosphate group Y = Ribose sugar Z = Nitrogenous base
X = Nitrogenous base Y = Ribose sugar Z = Phosphate group
X = Phosphate group Y = Nitrogenous base Z = Deoxyribose sugar
The following statements describe the difference between DNA and RNA EXCEPT
DNA is a stable molecule while RNA is a less stable molecule
There is only one type of DNA while there are several types of RNA
DNA contains uracil while RNA contains thymine
DNA is located in the nucleus while RNA is located in the cytoplasm
