Dr. Ara B. Dopsis has an idea he thinks will be a boon t...

Question

Dr. Ara B. Dopsis has an idea he thinks will be a boon to agriculture. He wants to create the 'pomato,' a hybrid between a tomato (Lycopersicon esculentum) that has 12 chromosomes and a potato (Solanum tuberosum) that has 48 chromosomes. Dr. Dopsis is hoping his new pomato will have tuber growth like a potato and the fruit production of a tomato. He joins a haploid gamete from each species to form a hybrid and then induces doubling of chromosome number.

How many chromosomes will the polyploid have after chromosome doubling?

Accepted Answer

Hello, everyone and welcome to today's video. So a new species of salt grass spar, Tina Aria was created by Interspecific Hyper of native soil grass spar which between parentheses has two N equals 60 close parentheses with a known native soil grass which is called spartan alter the flora, which is two N equals 62. How many chromosomes will the polyploid have? After chromosome doubling as answer choice. A we have 64 as answer choice B we have 128 as answer choice C we have 61 as answer choice D we have 122. Well, the offspring of these mating between these two species is going to have a number of chromosomes that's in between both of them. So it's going to be two N equals 61 Because that is going to be between 60 and 62, which is the number of chromosomes for the parents. Now, after chromosome doubling, all we have to do is multiply 61 times two, which is going to be 122. So that is going to be the number that we're looking for. If we look at our answer choices that's going to be answer choice 122. I really hope this video helped you and I hope to see you on the next one.

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