Genetics exam test queries and answers graded A+

Genetics Exam test quizzes and answers graded
A+
1. If a bacterial strain suitable for maintaining bac- teria
was described as with the geno- type: Lys-, Lac+; mini-
aux- otrophic, what mal medium salt mix
would you know
about it?

a. It is a metabolic
mu- tant
b. It can be
trans- formed
c. It has been
made
competent
d. It is cloned

2. When a bacterial
strain is
transformed from
one genotype to
an- other by a non-
living extract, what
must be true about
the strain?

a. it changed from
hap- loid to diploid
b. it became F+
c. It became HFr-
d. It was competent

3. What would be a
medium most


, Genetics Exam test quizzes and answers graded
A+
a. It is a metabolic mutant




d. It was competent




c. Lactose and Lysine






, Genetics Exam test quizzes and answers graded
A+
plus what? advance in un- derstanding the struc-
ture of DNA by showing that:
a. Glucose and lysine
b. Glycose and a. DNA contains ni-
Trypto- phan
c. Lactose and
Lysine
d. Lactose, Lysine,
and Ampicillin
e. Lysine and
ampicillin

4. Hershey and
Chase's work on
the nature of the
material of heredity
relied on what?

a.Density gradient
cen- trifugation
b. Streptococcus
are competent
c. ^35S only labels
pro- teins
d. Proteases only
de- stroy proteins
e.Streptococcus
under- go
transduction

5. Levene made a
signif- icant


, Genetics Exam test quizzes and answers graded
A+




c. ^35S only labels proteins




d. DNA is a polymer of
nucleotides