You cross true breeding blue and red morning glories and get all blue offspring. a) Based on...

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Biology

You cross true breeding blue and red morning glories and get allblue offspring.
a) Based on this information alone:
i) How many loci are involved in the expression of this trait?How many alleles? What are the dominant and recessive interactionsbetween the alleles at the locus/loci?
ii)what are the possible genotypes of the parents and F1s?
iii) Based on your hypothesized genotypes from ii, what do youexpect the outcome of a cross between the F1's to be? (i.e. whatphenotypes in what ratios?)
b) You then cross the F1 individuals and you obtain thefollowing results
Blue - 200
purple - 126
red - 24
i) Are these results statistically consistent with yourhypothesisabove?Â Â Â Â Â Â Â Â Â Â Â (proveit!)
ii) If not, what is an alternative hypothesis that might explainthese results? Are these results the result of one locus or 2? Testyour new hypothesis using chi-squared test. Discuss the meaning ofyour results. (Note: If your hypothesis proves wrong, that is OK!!!But you have to be able to discuss why you think it's wrong.)

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3.6 Ratings (400 Votes)

You cross true breeding blue and red morning glories and get allblue offspringa Based on this information alonei Here only one locus is involved in the expression of thistrait 2 alleles are involved For blue BB See Answer

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