A cotransduction experiment was performed with two bacteria strains. The first train has the genotype l+ g m+ while the second strain has the genotype of l g+ m. The researchers found that 46 colonies had cotransduced m+ with l+, while only 25 colonies had cotransduced g with l+. Using this information determine which of the following gene pairs are closest together.

Okay. So this, is a question that says a cotransduction experiment was performed with 2 bacterial strains. The first strain, which has an s not a t, is has the genotype L plus, so wild type L, mutant G, and wild type M. While the second strain, the genotype, mutant L, wild type G, and mutant M. And they did a co transduction experiment, so both of these genotypes, so both of these types, so both of these chromosomes here, were, put into the same experiment with the same bacteria. And it says, the researchers found that 46 colonies have transduced with m plus, l plus. So these 2 here, 25 colonies had transduced with g and l plus. Using this information, determine which of the following gene pairs are closest together. So, the more so is it true that the more colonies that there are that cotransduced, then the closer those genes are together? Is that true or false? It's true. Because the more colonies that have cotransduction, means the more likely those genes are so close together that they wouldn't be split up in any of the process of the transduction experiment. That they're so close together that so many a lot of colonies are going to get them together. So the combination, the 2 combinations that we have there's 3 combinations. Right? We have the l, m combination, with the l, g combination, and we have the g m combination. Now we got no information on this, so we can kind of assume that this combination here isn't going to have anything to do. It's not going to be the closest, because we either got 0 colonies or no colonies, so we're not interested in that one. So these are the 2 combinations that we're interested in. Now the l m combination had 46 colonies with transaction, and the l g combination had 25 colonies with transaction. So the bigger colony, which is 46, is going to mean that these genes are closer together because, they're cotransduced more often. So this question says, determine which of the following gene parents are closest together. The answer here is l and m because that combination produced 46 co transduced colonies. So with that, let's move on.

A cotransduction experiment was performed with two bacteria strai...

1. Introduction to Genetics51m

2. Mendel's Laws of Inheritance3h 37m

3. Extensions to Mendelian Inheritance2h 41m

4. Genetic Mapping and Linkage2h 28m

5. Genetics of Bacteria and Viruses1h 21m

6. Chromosomal Variation1h 48m

7. DNA and Chromosome Structure56m

8. DNA Replication1h 10m

9. Mitosis and Meiosis1h 34m

10. Transcription1h 0m

11. Translation58m

12. Gene Regulation in Prokaryotes1h 19m

13. Gene Regulation in Eukaryotes44m

14. Genetic Control of Development44m

15. Genomes and Genomics1h 50m

16. Transposable Elements47m

17. Mutation, Repair, and Recombination1h 6m

18. Molecular Genetic Tools19m

19. Cancer Genetics29m

20. Quantitative Genetics1h 26m

21. Population Genetics50m

22. Evolutionary Genetics29m

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