#Question id: 5286
#Unit 8. Inheritance Biology
An Hfr strain with genotype A B C D (each gene for amino acid synthesis )and that transfers the A gene very late was mated with recipient strain with genotype a b c d. After mating for several hours, the mixture was diluted and plated on minimal media with four different supplements having various number of colony
Media supplement with amino acid
Colony number
A+C 500
C+D 50
B 10
A 250
What is order of gene
#Question id: 5287
#Unit 8. Inheritance Biology
Interrupted matting of different Hfr strain with F- E.coli cell resulting generation of following strain Order of gene is
#Question id: 5288
#Unit 8. Inheritance Biology
Donor strain of bacteria with His+ Ara+ Met+ Leu+ Cys+ Lys+ is infected with phages to map the donor chromosome with generalized transduction .The Phage lysate from bacterial cell is collected and use to infect second strain of bacteria that are His- Ara- Met- Leu- Cys- Lys- . Different transducing phages are selected on using different minimal media and their presence of growth (+) and absence of growth (-) given in table
|
Media |
Media supplement 0 absent /+ present |
||||||
|
1 |
His |
Ara |
Met |
Leu |
Cys |
Lys |
Growth |
|
2 |
+ |
+ |
0 |
+ |
+ |
0 |
+ |
|
3 |
0 |
+ |
+ |
+ |
+ |
0 |
+ |
|
4 |
+ |
+ |
0 |
+ |
0 |
+ |
- |
|
5 |
0 |
+ |
+ |
0 |
+ |
+ |
+ |
|
6 |
+ |
0 |
+ |
0 |
+ |
+ |
+ |
|
7 |
+ |
0 |
+ |
+ |
0 |
+ |
+ |
Which of the following is correct order of gene?
#Question id: 5289
#Unit 8. Inheritance Biology
A donor strain of bacteria with genes a+b+c+ is infected with phages to map the donor chromosome with transduction. The phage lysate from the bacterial cells is collected and used to infect a second strain of bacteria that are a_ b_ c_.
Based on the above, which one of the following conclusions is correct?
#Question id: 5290
#Unit 8. Inheritance Biology
The following table shows mapping data from three interrupted mating experiments using three different Hfr strains and an F- strain: The order of genes is
#Question id: 5291
#Unit 8. Inheritance Biology
A number of nutritional mutant strains were isolated from wild-type Neurospora that responded to the addition of certain supplements in the culture medium by growth ( + ) or lack of growth ( -). Given the following responses for single gene mutations, diagram a metabolic pathway that could exist in the wild-type strain that is most consistent with the data. Indicate where the pathway is blocked in each mutant strain.