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WorksheetsRoutt DNA Structure
Total questions: 30
Worksheet time: 17mins
DNA is...
Single-stranded
Double-stranded
Triple-stranded
Triple-braided
DNA is _____-shaped.
Ladder-shaped
Ball-shaped
X-shaped
Pyramid-shaped
If DNA is shaped like a twisted ladder, then the sides of the ladder are made of...
nucleotides.
adenine and thymine.
sugar and potassium.
phosphate and sugar.
If DNA is shaped like a twisted ladder, the rungs of the ladder are made of _____.
nucleotides.
adenine and thymine.
sugar and potassium.
phosphate and sugar.
_____ are attracted to each other in pairs called complimentary pairs.
nucleotides.
3' and 5'.
sugar and potassium.
phosphate and sugar.
What holds the two sides of the DNA “ladder” together?
Attraction of sugar to phosphate.
Attraction of complimentary pairs of nucleotides.
Attraction of the 3' end to the 5' end.
Atrraction of Adenine to Cytosine.
DNA is a _____ acid.
strong.
weak.
nucleic.
inorganic.
What does DNA stand for?
(a)
List the 4 Nucleotides.
Sugar, thymine, cytosine, guanine.
Adenine, thymine, cytosine, guanine.
Adenine, thymine, cytosine, uracil.
Sugar, phosphate, cytosine, guanine.
Which of the following is reliable?
Adenine is attracted to cytosine.
Adenine is attracted to guanine.
Adenine is attracted to uracil.
Adenine is attracted to thymine.
Which of the following is reliable?
Guanine is attracted to cytosine.
Guanine is attracted to adenine.
Guanine is attracted to uracil.
Guanine is attracted to thymine.
How are the ends of each strand named?
Adenine and Thymine
Cytosine and Guanine
3' and 5'
Sugar and Phosphate
Describe how the two strands arranged in relation to each other.
In opposite directions.
In the same direction.
At right angles to each other.
In a clock-wise arrangement.
How is the 3' end different from the 5' end?
Nucleotides cannot be added to the 3’ end.
Nucleotides can only be added to the 5’ end.
Nucleotides cannot be added to either end.
Nucleotides can only be added to the 3’ end.
The two sides of the DNA “ladder” have _____ functions.
different
similar
identical
sister chromatids
One strand of the DNA is the ____________ strand. The other strand is the ____________ strand.
sense... antisense
good... bad
sense... nonsense
homologous... analogous
The genetic code is in the _____ to _____ direction.
3' to 5'
top to bottom
5' tp 3'
bottom to top
The genetic code is on the...
Sense strand.
Sugar-phosphate backbone.
Antisense strand.
Protein microtubule.
The antisense strand is _____.
the genetic code.
random nonsense.
not made of DNA.
a template.
The antisense strand is _____.
the compliment to the sense strand.
identical to the sense strand.
an insult to the sense strand.
nucleotides in random order.
A ____________ has the negative form of the object it is used to create.
Sense strand
Ladder
Nucleic acid
Template
Any of four chemicals that form the “rungs” of the DNA “ladder.”
Adenines
Phosphates
Potassium
Nucleotides.
Pairs of nucleotides that are attracted to each other.
Primary.
Sense.
Antisense.
Complimentary.
Any object used as a pattern/guide to make other objects.
Template
Enzyme
Catalyst
Nucleotide
The strand of DNA that contains the genetic code is the (a) strand.
The strand of DNA that DOES NOT contain the genetic code is the (a) strand.
The strand of DNA that serves as a template for the sense strand is the (a) strand.
The making of something.
Replication.
Synthesis.
Transcription.
Translation.
A protein that acts as a catalyst.
Microtubule
Nucleic Acid
Enzyme
Template
Any chemical that causes other chemicals to react, but does NOT itself get used up by the reaction.
Microtubule
Nucleic Acid
Catalyst
Template
