Biology word problem really need help before tomorrow can anyone figure it out?
In a cross of a purple-flowered,short-stemmed plant with a yellow-flowered, long-stemmed plant,?
the expected phenotypic ratio is 1 purple-short : 1 purple-long : 1 yellow-short : 1 yellow long. When you do the actual cross you observe a 5 purple-short : 1 purple long : 1 yellow short : 5 yellow-long phenotypic ratio. Which of the following explains these results.
a. gene determining the phenotype has pleiotropic effects
b.genes are linked
c.relationship between the alleles involved in determining the phenotype is incomplete dominance.
d.purple-long and yellow-short individuals are recombinants
e. b and c
Choice d..(answer)
Reasoning: Choice (a): Look up definition; doesn't apply here.
(b): If so ,you wouldn't get Independent Assortment result, like a Purple long.
(c): It's complete dominance.
(e): Not b or c
Not enough crosses were done to get the expected ratios.
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