#Question id: 12409
#Unit 6. System Physiology – Plant
#Question id: 21125
#Unit 12. Applied Biology
#Question id: 14485
#Unit 13. Methods in Biology
#Question id: 10610
#Unit 10. Ecological Principles
Among the following which statement is false about r-selected species?
#Question id: 5281
#Unit 8. Inheritance Biology
In the mating Hfr Strs met+ his+ leu+ trp+ Ala+ X F- Strres met- his- leu- trp- Ala-. At regular interval time, the mating cells are interrupted and the cell suspensions plated on four different growth media with streptomycin. The amino acids in the growth media and the number of colonies observed on each are as follows:
Interrupted time |
Composition of media |
Growth |
||||
His |
Leu |
Ala |
Trp |
Met |
||
2 min |
+ |
- |
+ |
+ |
+ |
Yes |
10 min |
+ |
- |
- |
+ |
+ |
Yes |
12 min |
+ |
- |
- |
+ |
- |
No |
15 min |
+ |
- |
- |
- |
+ |
Yes |
20 min |
- |
- |
- |
- |
+ |
Yes |
What is the order of transfer of the genes?