#f2generation

[phantomtutor]

SOLUTION AT Academic Writers Bay Here is the class data. Please answer the questions using this data. F1 class results Cross A: white eyed male wild type red female Males red eyes 132 Females red eyes 135 Males white eyes 0 Females white eyes 0 F1 class results Cross B: wild type red eyed male white eyed female Males red eyes 0 Females red eyes 110 Males white eyes 105 Females white eyes 0 F2 class results Cross A Females red eyes 295 Males red eyes 150 Males white eyes 147 Female white eyes 0 F2 class results Cross B Female red eyes 101 Female white eyes 95 Male red eyes 99 Male white eyes 93 Question 1 Present the class data of theD. melanogasterbreeding experiment in a suitable tabulated format as given below. Include wholeclassresults (cross A and B) for both F1and F2generations.   Cross Cross A Cross A Cross B Cross B Phenotype F1 generation F2 generation F1 generation F2 generation Male red eyes Female red eyes Male white eyes Female white eyes Question 2 Using to indicate the wildtype red-eyed allele and w to indicate the mutant white-eyed allele, state the genotypes of the following: a) Wildtype red-eyed and white-eyed parental flies from cross A and cross B   b) Males and females from the F1 generation flies from cross A and cross B.   c) Males and females, F2 generation flies from cross A and cross B. Question 3 Draw Punnett squares to show the ratios expected in the experiment fo   a) Parental to F1 generation for cross A and cross B b) F1 to F2 generation for cross A and cross B Note: There should be a total of 4 Punnett squares and they should show both the genotype AND phenotype AND the ratios. Please use the insert table option to draw the Punnet squares or upload your Punnet squares. Question 4 Carry out a suitable statistical test on the whole class results of F2 for both cross A and cross B (use gender and eye colour). Your answer should include: a null hypothesis degrees of freedom level of significance expected numbers of flies observed numbers of flies a P value   The critical value (from a statistical table) Show all of the steps clearly. State whether you should accept or reject the null hypothesis. State your conclusion and how this relates to the genetic basis of white eyes. Include a brief discussion of the results with relevant references. Be sure to use Harvard referencing.   CLICK HERE TO GET A PROFESSIONAL WRITER TO WORK ON THIS PAPER AND OTHER SIMILAR PAPERS CLICK THE BUTTON TO MAKE YOUR ORDER

[katiajewelbox]

Is this a pagan ritual scene from a lost 1970's British folk horror film? No, but it is horror of another kind - the "disappointment" of growing F2 seeds from F1 supermarket Butternut Squash (Cucurbita moschata).

What is an "F1 plant" and why should we avoid saving seeds from F1 fruits, veggies, and flowers? F1 is genetics terminology for "filial generation number 1". An F1 generation is created by cross breeding two distinct varieties of plant via sexual reproduction. The two parent plants may be different cultivars of the same plant species, or even two different but closely related species. The aim is to produce a plant with the best characteristics of the two parent plants. These desirable characteristics may include large fruits, many fruits per plant, good flavour, disease resistance, or compact plant size (so more can be grown in an area). These F1 hybrids all have the same combination of genes from both parents and are uniform in appearance.

This consistency and combination of useful traits makes F1 hybrid plants popular in both home gardening and industrial agriculture. The dark side of F1 plants that their seeds will grow into plants very different from the parent plants. That's the case with the supermarket Butternut Squash. The parent plant's fruit is pictured in the screenshot and it is a long, heavy, pear shaped squash. The F2 generation are a motley crew of miniature butternut shaped squash and chunky round squash. Most only had 1-2 fruits per sprawling plant. When in doubt about F1 seeds, stick to buying true heirloom varieties.

(Please note that the long pale coloured squash is a Candy Roaster (Cucurbita maxima), not a Butternut.)