Нурothesis What is your hypothesis to explain the phenotypes (white/red eye trait) observed in your F1 generation? (Punnett square may be used to explain). Allele (R) causes red eyes. Allele (r) for white eye color -> in this example, sex/linked includes the gene for the red white eye feature, which is X/linked. Alled (R), which is red in color, is dominant over allele (r), which is white in color. The punnet square illustrates how F1 generation is formed from parent generation.
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- Homozygous white grapefruit Heterozygous white grapefruit W Ww ww Ww Ww Ww ww Ww Ww 1. What will be the offspring, if the white grapefruit tree is heterozygous? 2. What will be the offspring, if the white grapefruit tree is homozygous? 3. What will be phonotypical ratio?please answer, do not copy from google please What is the shape of the ascus? The ascospores inside the asci are produced by meiosis. Are ascospores haploid or diploid? Interspersed among the asci are sterilefilaments, the paraphyses. Deduce the function of paraphyses. The ascospores are released from the asci and undergo mitotic division upon germination. Are the individuals germinating from ascospores haploid or diploid?38 sday, November 5 DOLL Safari File Edit View History Bookmarks Window Help A canton.open.suny.edu B5 Take Te.. S https:.. DCultu. S Lace. S Drago Wom. Does... S Crop. Credi. QUESTION 1 A pea plant that is heterozygous for the flower color gene makes gametes. What is the probability that a specific gamete contains the recessive allele for flower color? Oa. 75 percent Ob.25 percent Oc. 50 percent Od. 100 percent
- In a haploid yeast strain, eight recessive mutationswere found that resulted in a requirement for theamino acid lysine. All the mutations were found to revert at a frequency of about 1 × 10−6 except mutations5 and 6, which did not revert. Matings were madebetween a and α cells carrying these mutations. Theability of the resultant diploid strains to grow onminimal medium in the absence of lysine is shown inthe following chart (+ means growth and − means nogrowth.)1 2 3 4 5 6 7 81 − + + + + − + −2 + − + + + + + +3 + + − − − − − +4 + + − − − − − +5 + + − − − − − +6 − + − − − − − −7 + + − − − − − +8 − + + + + − + −a. How many complementation groups were revealedby these data? Which point mutations are foundwithin which complementation groups?The same diploid strains are now induced to undergosporulation. The vast majority of resultant spores areauxotrophic; that is, they cannot form colonies whenplated on minimal medium (without lysine). However,particular diploids can produce rare spores…You are interested in studying the evolution of Rnase-based gametophytic self-incompatibility. You go into a population and identify 4 S-alleles present. These alleles are designated S1, S2, S3, and S4, and they occur in the sporophyte only as heterozygotes at equal frequency, in each of the 6 possible combinations: S1 S2 S₁ S3 S1 S4 S₂ S3 S₂ S4 S3 S4 Assuming random dispersal of pollen, what fraction of S₁ pollen grains that land on stigmas will be able to fertilize ovules in this population? Why?Each sperm of a tomato plant contains seven chromosomes. What are the haploid and diploid number for tomatoes? haploid=7 and diploid=14 haploid=14 and diploid=7 haploid=7 and diploid=49 haploid=3 and diploid=7
- Besides the ones mentioned in this textbook, look for other examplesof variations in euploidy. Perhaps you might look in moreadvanced textbooks concerning population genetics, ecology, etc.Discuss the phenotypic consequences of these changes.Part C Maize Genetics Seedling Characteristics In corn, tall (7) is dominant over dwarf (t). Predict what phenotypic ratio of tall to dwarf plants you expect to observe. 18. What is your expected monohybrid F2 phenotypic ratio Your null hypothesis is that there is no difference between your observed ratio and the expected ratio. Your alternative hypothesis is that there is a difference between your observed ratio and the expected ratio. Observe the flats of seedlings grown from F2 seeds resulting from crossing F₁ hybrids. Monohybrid Cross: 19. Record data below. Number of tall seedlings Number of dwarf seedlings. 20. What are the phenotypes of the F2 generation Of the F₁ generation Of the parents 66A heterozygous diploid yeast Aa Bb went through meiosis. What percentage of the haploid spores will have recombinant combinations of alleles? What if genes A and B are unlinked? Explain What is genes A and B are linked? Explain
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