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WorksheetsDNA structure & Function
Total questions: 23
Worksheet time: 12mins
Differences in traits such as hair texture are determined by differences in-
the location of sugar groups in DNA
the sequence of nucleotides in DNA
the number of nitrogenous bases in DNA
the molecules attached to the phosphate in DNA
Which part of the DNA is responsible for the direct coding of specific traits in an organism?
the # of hydrogen bonds
the # of carbons in the DNA
the sequence of nucleotide bases in the DNA molecule
the sequence of phosphates along each DNA strand
Which statement is true, based on the picture below?
The model is inaccurate because the base pairs are incorrect
The model is accurate because it contains correctly paired bases.
The model accurate because it shows each splitting to form a double helix
The model is inaccurate because some typical bases in DNA are missing
Nitrogenous (nitrogen) bases are located on both strands of DNA double helix. What is the significance of nitrogen bases?
The # of A's and C's determine the type of RNA produced
The order of the bases determines the order of the amino acid that make up the protein
The amount of T and G in DNA determines the length of the genes
The type of H bonding between bases determines the amino acid that makes up the protein
What strand of DNA matches
How is information for a certain protein carried on the DNA?
As a sequence of nucleotides
In the double-helix shape of the condensed chromosome
In the ratio of adenines to thymines
As a pattern of phosphates and sugars
Which of these models of a DNA strand shows bases that are complementary to the DNA model above?
The sequence of bases in the DNA is most important for which of the following?
Providing the instructions for the traits of an organism
Preventing mutations from occurring during DNA replication
Allowing the DNA to have the shape necessary for the replication
Helping form the sugar-phosphate backbone of DNA molecules
What does the arrow indicate on the DNA model?
The bond between adjacent phosphate and deoxyribose molecules
The junction of introns and exons in the sense strand of DNA
The hydrogen bond between complementary nucleotides
The junction of a codon and a DNA triplet
Characteristics such as widow's peak or attached earlobes are determined by the genetic code. What components of DNA are referred to as the genetic code?
Phosphate groups
Nitrogenous bases
Deoxyribose sugars
Hydrogen bonds
How does DNA in cells determine an organism's complex traits?
DNA contains codes for proteins, which are necessary for the growth and functioning of an organism
DNA separates into long single strands that make up each part of an organism
DNA produces the energy an organism needs to grow
DNA folds into the nucleus of each of the cells organism
What is the following molecule called?
Nucleotide
Nucleoside
ATP
ADP
What letter represents the part of the nucleotide that is the genetic code?
1
2
3
None of the above
Which components bond with adenine in a section of DNA?
1, 3, 5, AND 6
3 AND 5
2 AND 4
3,4,7 AND 8
What #'s make up the backbone of DNA?
1 and 2
3 and 5
1 and 3
6 and 8
What #'s represent the genetic code?
1,2,3,4
5,6,7,8
1,3,5,7
2,4,6,8
3' AGGTCAGGT 5'
5' AGGTCAGGT 3'
5' ACCTCUGGT 3'
5' TGGACTGGA 3'
5' TCCAGTCCA 3'
What is the purpose of this process?
make protein
make sugar for cell
Copy DNA
Transport molecules
Which letters collectively make up a nucleotide. Select all that apply
W
X
Y
None
Which letter represents the phosphate group on the DNA strand?
X
Y
W
Z
Which letter represents the deoxyribose sugar on the DNA strand?
X
Y
W
Z
Which letter represents the nitrogen base on the DNA strand?
X
Y
W
Z
What does X represent?
nucleotide
nitrogen base
hydrogen bond
deoxyribose sugar
