Question

How similar are the observed phenotypes in each replicate? 2. how similar are they if you pool your data from each of the five replicates? 3. is it closer or further from your prediction? 4. did the results from the monohybrid or dihybrid cross most closely match your predicted ratio of phenotypes? 5. based on these results; what would you expect if you were looking at a cross of 5, 10, 20 independently sorted genes? 6. why is it so expensive to produce a hybrid plant seed? 7. in certain bacteria, an oval shape (o) is dominant over round (o) and thick cell walls (t) are dominant over thin (t). show a cross between a heterozygous oval,?

Answer 1

1. All the replicates are similar with regards to their primary phenotype, that is, 'yellow, wrinkled' and 'yellow smooth'.
2. Pooling the data will retain some similarities, while some differences will become obvious too.
3. Closer. The dominant alleles came out to be yellow and smooth.
4. The results from both crosses match the results predicted from ratios given by a theoretical cross.
5. The result obtained would vary from the experimental results due to the process of genetic selection. Over many generations, the recessive alleles will take place of the dominant alleles.
6. The experiment needs to be repeated several times before the desired characteristics are obtained.
7. The range of F1 phenotypes would be oval and thick, oval and thin, round and thick, round and thin . F1 phenotypic ratio: 1:1:1:1

F2 phenotypes: oval and thick, oval and thin, round and thick, round and thin . F2 phenotypic ration: 9:3:3:1

Hope that answers the question, have a great day!