There are three events A, B and C, one of which must occur and only one can happen, the odds are 8 to 3 against A, 5 to 2 against B; find the probability of C.

#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

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.