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WorksheetsDNA
Total questions: 15
Worksheet time: 10mins
Which of the following bases have INCORRECT base pairing
Adenine-Guanine
Thymine-Adenine
Guanine- Cytosine
Uracil- Adenine
A type of RNA containing the anti codon
rRNA
mRNA
tRNA
pRNA
The rule that in DNA there is always equality in quantity between the bases A and T and between the bases G and C.
(a)
Which of the following bases is not a pyrimidine?
Uracil
Thymine
Cytosine
Adenine
If one DNA has GC contents of 30%, what will be the percentage of Guanine?
15%
30%
35%
70%
A type of sugar found in RNA
(a)
______ is a single-stranded RNA molecule that is complementary to one of the DNA strands of a gene.
tRNA
rRNA
mRNA
Method of replication suggests that the two parental DNA strands serve as a template for new DNA and after replication
semi-conservative
conservative
dispersive
semi- dispersive
During which stage of mitosis is DNA replicated?
s- phase
prophase
g2- phase
anaphase
The (a) is a region found within the cell nucleus that is concerned with producing ribosomes.
All of the following are the description of a DNA, EXCEPT;
contains deoxyribose sugar
usually double stranded
contains Thymine instead of Uracil
contains short one gene sequence
Building blocks of nucleic acids
(a)
A molecule consisting of two strands of alternating phosphate and sugar plus with nitrogenous bases
DNA
GENES
RNA
Nucleus
It is an organelle responsible for storage of genetic materials
(a)
The two strands are held together between the bases because of a bond known as _________
covalent bond
ionic bond
metallic bond
hydrogen bond
