NEW
Font size
S
M
L
XL
WorksheetsCh 14, L 1, The Nature of the Genetic Material
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
What is a virus that infects bacteria called?
a)
bacteriophage
b)
infectious virus
c)
transformation
d)
gene change
2.
Who discovered that bacteria could be changed by the process of transformation?
a)
Griffith
b)
Hershey & Chase
c)
Avery
d)
Franklin
3.
By using radioactive isotopes, Hershey and Chase were able to conclude that __ is/are the carrier(s) of genetic information.
a)
DNA
b)
Proteins
c)
Carbohydrates
d)
Lipids
4.
S-strain bacteria
a)
caused pneumonia
b)
had a smooth appearance
c)
was covered by a mucus-like coat
d)
all of these
5.
Griffith discovered
a)
that DNA was the genetic material
b)
that R-strain had transformed into S-strain
c)
that x-rays can take pictures of DNA
d)
that mice aren't very good for genetic studies
6.
Oswald Avery discovered
a)
DNA was the transforming principle
b)
that there is more phosphorus in DNA than in protein
c)
how viruses work
d)
the structure of DNA
7.
When a mouse was injected with living S bacteria, the mouse ___________
a)
Lived
b)
Died
8.
When a mouse was injected with BOTH heat-killed S bacteria AND living R bacteria, the mouse ___________
a)
Died
b)
Lived
9.
Why did Hershey and Chase chose to study bacteriophages?
a)
They are only made of protein and DNA
b)
They are easy to keep alive in the lab
c)
It would help them cure cancer
d)
They are made of only DNA
10.
Hershey and Chase wanted to find out which part of a bacteriophage ____________________.
a)
entered the bacteria cell
b)
was made of nitrogen
c)
was radioactive
d)
contained carbon
Reset
