DNA Structure and Function Quiz
Preview:
Where does the DNA separate prior to replication?
A. base
B. chromosome
C. origin
D. it never separates
According to the principle of base pairing, bonds can only form between ________ and ____________; __________ and ____________.
A. adenine and thymine;
cytosine and guanine
B. lion and tigers;
bears and monkeys
C. hydrogen and oxygen;
carbon dioxide and gradient
D. atoms and thyme;
carbon and gradient
The proteins found in DNA are
A. adenine, thymine, chromatin, guanine
B. adenine, thymine, cytosine, guavanine
C. adenine, thymine, cytosine, guanine
D. adenosine, thymine, cytosine, guanine
the “twisted ladder” of the DNA molecule
A. nitrogenous base
B. chromosome
C. double helix
D. base pairing
What is the sex cell for females
A. XX
B. XY
C. YX
D. YY
What is the shape of the DNA molecule?
A. single file
B. double helix
C. triple axis
What is the function of DNA?
A. allow sunlight for photosynthesis
B. produce food for energy
C. storage of genetic information
The DNA shape is
A. rectangular
B. circular
C. triangular
D. spiral
What part of our DNA is different from other species and individuals who have different traits?
A. nucleus
B. genes
C. jeans
D. deoxyribose
The protein adenosine is paired with
A. thymine
B. guanine
C. cytosine
D. all of the above
What is on the sides of the DNA molecule?
A. base
B. sugar and phosphate molecules
C. energy
D. oxygen
Replication is
A. when DNA is tripled
B. when a new strand of DNA is formed
C. when DNA decreases
DNA directs the sequencing of
A. amino acids
B. fats
C. ribosomes
D. traits
Identical twins have exactly the same traits because…
A. they have exactly the same genes
B. they have exactly the same mother
C. they have exactly the same father
D. they have exactly the same traits
DNA Replication produces ___ new DNA molecules; each with one _______strand and one _____ strand.
A. 1, original, original
B. 2, original, and new
C. 2, new, and new