The narrow-sense heritability of the number of seeds per flower is 0.9. The mean of the population is 6.0 seeds per flower. A flower breeder crosses one flower with 7 seeds to another plant with 9 seeds. What is the expected number of seeds per flower in the offspring of this cross?

Okay. So this question says that narrow the narrow set teratability of the number of seeds per flower, so there's a flower that produces seeds, and its h two value is 0.9. And so what does this mean? It's likely that you can select, for flower seed production. Right? Select for the number of seeds per flower. Because it's the the narrowest inheritability is close to 1. So, therefore, this is something that you can probably select for. Since the man of the population is 6 seeds per flower, but the flower breeder decides to pick, some flowers out of a population, one with 7 seeds and one with 9 seeds. What's the expected number of seeds per flower in the offspring of the cross? So to do this question, we need a formula and that formula is this. Now we have the Narrowsens Heritability. Right? We already have that. So what is r and what is s? So remember, r is the value we're looking for, the seeds per flower and the offspring. And s is the mean of the parents, which was also given in the core problem, which is 7+9 divided by 2. So let's solve this problem. So we start out with 0.9 equals r, which is what we're solving for. And then the mean of the parents is what? We'll do 7+9 divided by 2. That's going to be 8. So now to solve for r, we multiply 8 on both sides. Right? So 8 times 0.9 is what? 7.2 and that is our r. So the, if we made it, so if we made this cross with 7 seeds, with 9 seeds, then the most likely, amount of seeds per flower in the offspring would be 7. And so you can see that that's higher than the average that we started with in the population, which was 6. The reason is because this trait is very highly inheritable. We have a 0.9 heritability, And so if we pick, flowers with more seeds than the average, then they're going to produce offspring that also have more seeds than the average. So the answer to this question is c. With that, let's move on.

The narrow-sense heritability of the number of seeds per flower i...

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

My Courses

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

The narrow-sense heritability of the number of seeds per flower is 0.9. The mean of the population is 6.0 seeds per flower. A flower breeder crosses one flower with 7 seeds to another plant with 9 seeds. What is the expected number of seeds per flower in the offspring of this cross?