Use the product law to calculate the probability that mating two organisms with the genotype of AaBbCcDd will produce offspring with the genotype of AA bb Cc Dd?

Okay. So this question asks, or tells you to use the product law to calculate the probability of mating 2 organisms, this and, that this genotype will produce the offspring of this. So, we have, this is the cross we are doing. And, it wants to know about this. Now, we could do a huge Punnett Square. Right? And if we did, say the genotypes would look something like this. Would be, a a a a or a. You could have, b, b, b, b. You have c, c, c, c, d, d, d. Then you would have the other 4. There's 4 more here. This is only 8. This is 4, there would be 4 more. Obviously, that's a freaking ginormous Punnett Square and totally not worth it. Don't do this. So instead, what do you do? You use the product law. Product law means that you take each trait individually. So what's the probability of having this genotype? Now, it's much easier to do monohybrid crosses. Now, if you have to do this at this point that's totally fair. Eventually, you're going to just need to, understand this and just know. But if I were to do a Punnett square, this is what it would look like. So the probability of this would be 1 fourth. If I were to do this with b, the probability would be again, 1 4th. Now if I were to keep doing this, let me back up. If I were to keep doing these Punnett squares, which I could, but at this point, I'm doing the same Punnett square over and over and over again. But I'm just using like different letters. Right? I mean, if you look at the offspring, if I change these b letters to a, it would be the exact same Punnett Square. So I'm not going to keep doing this because I I should know that anytime I do a heterozygous cross, my offspring are going to look like this. And so, it doesn't matter what letters I use. This is what they're gonna look like. So here, I have 1 fourth. Here, I have 1 fourth. Now, my c is gonna be 2 fourths. Right? And the same for a d. So if I calculate this, 1 fourth times 1 fourth times 1 fourth times 1 fourth or 2 fourths times 2 fourths, I get 1 times 1 times 2 times 2, I get 4. And I get 4 times 4, 16 times 4 times 4, which, dear goodness, I don't have my calculator. And I forgot to look at the answer to this. So we're just going to do this off top of your head. I suggest you use a calculator or if you just know math, which I don't, you get 4 over 256. Obviously not an answer here. So, if I were to divide 256 by 4, I get 624 minus 1, I suggest you use your calculator, 4. So I get 1 over 64, and that is c. So that is the answer. For all of this math, you should be able to use a calculator, if you're not that good at math. If but you can easily figure it out. If not, there's just basic math or makes it multiplication and division. But, you should be able to have a calculator. So hopefully this makes sense. If you're not understanding how I'm getting these genotypes, then you should probably go back and review some of the monohybrid crosses. Because at this point, if I give you 2 heterozygotes, and ask you what the proportions of their offspring are, you should know this off the top of your head or be able to refresh yourself very easily. So if you can't, make sure you go back and review. But if you can, good job, you're doing well, you're right on track. And so, that is the product law. And so, one out of every 64 offsprings from this mating will look like this. So now, let's move on.

Use the product law to calculate the probability that mating two ...

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

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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

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17. Mutation, Repair, and Recombination1h 6m

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Use the product law to calculate the probability that mating two organisms with the genotype of AaBbCcDd will produce offspring with the genotype of AA bb Cc Dd?