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- if a plant is an auto-tetraploid with the genotype A1A1A2A2, what is the frequenct of offspring with the genotype A1A1A1A1 following self-fertilization of the plantContrast the fertility of an allotetraploid with an autotriploid and an autotetraploid.An organism has a haploid number of 36. What is the organism diploid number ?
- Seedless watermelons that you find in the supermarketare triploids, where x = 11.a. At what frequency are balanced gametes generatedby triploid watermelons?Give the chromosome number for the following: 1. 2n=4 treated with colchicine to produce an autotetraploid 2. Monoploid maize (2n=20)3. 5IIA+ 5IIBgive the types of gamets produced by a plant with round seeds and yellow cotyledons and gentype RrYy
- What is the difference between the haploid and diploid number?Is a pine pollen grain haploid or diploid? Is it a gamete?Explain your answer.Suppose you have an AAaa tetraploid plant and it undergoes self-fertilization. At least two copies of thedominant allele A are needed to obtain the dominantphenotype. At what frequency will progeny with thedominant phenotype appear?
- How many meiotic divisions are required to produce 76 seeds in a Guava fruit?A diploid organism is heterozygous for 4loci,how many types of gamete can be produced?A snapdragon with pink petals, black anthers, and longstems was allowed to self-fertilize. From the resultingseeds, 650 adult plants were obtained. The phenotypesof these offspring are listed here.78 red long tan26 red short tan44 red long black15 red short black39 pink long tan13 pink short tan204 pink long black68 pink short black5 white long tan2 white short tan117 white long black39 white short blacka. Using P for one allele and p for the other, indicatehow flower color is inherited.b. What numbers of red : pink : white would havebeen expected among these 650 plants?c. How are anther color and stem length inherited?d. What was the genotype of the original plant?e. Do any of the three genes show independentassortment?f. For any genes that are linked, indicate the arrangements of the alleles on the homologous chromosomes in the original snapdragon, and estimate thedistance between the genes