Life Science Review 6.1 Question Preview (ID: 12002)


What Does DNA Look Like. TEACHERS: click here for quick copy question ID numbers.

_________ are located in a cell's _________
a) DNA; genes
b) chromosomes; nucleus
c) chromosomes; genes
d) nucleus; DNA

What is not a component of nucleotides?
a) sugar
b) phosphate
c) base
d) acid

What is not a nitrogenous base in DNA?
a) adenine
b) guanine
c) uracil
d) cytosine

What is Chagraff's rule?
a) the amount of adenine equals the amount of thymine
b) there are 4 nitrogenous bases in nucleotides
c) DNA is a double helix
d) DNA can be seen using X-ray diffraction

The________ of DNA are made of _______________
a) sides; alternating sugar and phosphate parts
b) rungs; alternating sugar parts and phosphate parts.
c) sides; bases
d) 2 of the choices

Which bases are complementary?
a) A and T
b) C and T
c) G and T
d) G and A

Replicated DNA is made of
a) one new strand and one old strand
b) 2 old strands
c) 2 new strands
d) 2 of the choices

Which of the following is correct
a) DNA is copied every time a cell divides
b) every new cell created by replication gets half a copy of DNA
c) each base binds with 2 other bases
d) the rungs of the DNA ladder are made of alternating sugar and phosphate parts

Bases on each side of DNA form a _______ for a new strand
a) pattern
b) molecule
c) copy
d) gene

Who built a model of DNA?
a) James Watson
b) Francis Watson
c) Francis Crick
d) 2 of the choices

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