The question is .... . How many different auxotrophic phenotypes are represented
ID: 310679 • Letter: T
Question
The question is ....
. How many different auxotrophic phenotypes are represented in your collection of three yeast strains?
Suppose you had a fourth yeast strain that was haploid and unable to synthesize the amino acid arginine. If you replica printed it onto the same kinds of plates that you used in this experiment, on which plates would it be able to grow? Explain your answer
Strain
YPD
SD
SD + HIS
SD + LEU
SD + URA
SD + HIS + URA
SD + HIS + LEU
SD + URA + LEU
A
+
+
+
+
+
+
+
+
B
+
-
-
-
-
+
-
-
C
+
-
-
-
-
-
+
-
Strain
Phenotype
Prototroph or Auxotroph
A
Has all amino acids and nutrients needed to synthesize
Prototroph
B
Leu + His and Ura. This strain needs His and Ura to synthesize
Auxotroph
C
Ura + His and Leu. This strain needs His and Leu to synthesize
.
Auxotroph
Strain
YPD
SD
SD + HIS
SD + LEU
SD + URA
SD + HIS + URA
SD + HIS + LEU
SD + URA + LEU
A
+
+
+
+
+
+
+
+
B
+
-
-
-
-
+
-
-
C
+
-
-
-
-
-
+
-
Explanation / Answer
Three auxotrophic phenotypes are represented in the collection of the three yeast strains.
Strain
YPD
SD
SD + HIS
SD + LEU
SD + URA
SD + HIS + URA
SD + HIS + LEU
SD + URA + LEU
A
+
+
+
+
+
+
+
+
B
+
-
-
-
-
+
-
-
C
+
-
-
-
-
-
+
-
D
In the fourth strain D, which is not able to synthesize the amino acid, arginine can grow only in YPD plate among the above plates because it needs the exogenous supply of arginine for its normal development.
Strain
YPD
SD
SD + HIS
SD + LEU
SD + URA
SD + HIS + URA
SD + HIS + LEU
SD + URA + LEU
A
+
+
+
+
+
+
+
+
B
+
-
-
-
-
+
-
-
C
+
-
-
-
-
-
+
-
D
+ - - - - - - -Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.