An attribute of growth behavior of eight bacteriophage mutants...

Question

An attribute of growth behavior of eight bacteriophage mutants (1 to 8) is investigated in experiments that establish coinfection by pairs of mutants. The experiments determine whether the mutants complement one another or fail to complement These eight mutants are known to result from point mutation. The results of the complementation tests are shown below.
How many genes are represented by these mutations?

How many genes are represented by these mutations?

Accepted Answer

Hello everyone and welcome to today's video. So the results of complementation tests of six deletion mutants of a certain bacteria are given below where A plus is going to indicate that recombinant are being formed. And so we are provided a table that contains information on the deletion mutations for genes +12345 and six, and different strains one through six. Now we need to determine the number of genes represented by these mutations and the answer choices are A one B two C three and D four. Well, remember that here we're dealing with complementation test. So we need to look for strains that have mutations in genes that complement each other. So for example, gene one is found mutated in strains 145 and six. While gene two is going to be found mutated in strains two and three. So these two are complementing each other and therefore they are the total number of genes that are being represented by these mutations. So it's a total of two genes represented here. And therefore the correct answer choice is going to be answer choice B which is so I really hope this video helped you and I hope to see you on the next one.

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