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Variation And Genetics Set 3
Results
#1.
Which of the following is present in the chemical composition of DNA
Sulphur
Sulphur
Phosphorus
Phosphorus
Iodine
Iodine
Potassium
Potassium
#2.
Which of the following is absent in the virus proteins?
sulphur
sulphur
phosphours
phosphours
nitrogen
nitrogen
carbon
carbon
#3.
DNA is formed of units called:
nucleotides
nucleotides
glucose
glucose
amino acids
amino acids
fatty acids
fatty acids
#4.
Which of the following is not the chemical component of a nucleotide of DNA?
Deoxyribose sugar
Deoxyribose sugar
Phosphate group
Phosphate group
Nitrogenous base
Nitrogenous base
Amino acid
Amino acid
#5.
The different types nitrogenous based which from different nucleotides are:
4
4
5
5
6
6
7
7
#6.
Which of the following nitrogenous bases is absent in the nucleotides of DNA?
Thymine
Thymine
Adenine
Adenine
Uracil
Uracil
Cytosine
Cytosine
#7.
Which of the following different types of nucleotides form DNA molecule?
2
2
3
3
4
4
5
5
#8.
According to Waston and Crick model of DNA, each molecule is made up of
one strand
one strand
two strands which run parallel
two strands which run parallel
two strands which twist around each other
two strands which twist around each other
three stands
three stands
#9.
The two strands of DNA molecule are held together by weak:
hydrogen bonds
hydrogen bonds
Carbon bonds
Carbon bonds
Ionic bonds
Ionic bonds
Oxygen bonds
Oxygen bonds
Finish
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