helloworld121
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A gene controls the production of chlorophyll in lettuce plants. The recessive allele of this gene blocks chlorophyll formation which prevents seedling development.
Plants heterozygous for this gene were cross bred and 1000 of their seeds were planted. Only about 750 developed into mature plants.
What percentage of these mature plants would be heterozygous for this gene?

A. 25 %
B. 33 %
C. 50 %
D. 67 %
E. 75 %

The answer is D but I keep getting C, any help would be greatly appreciated
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kakaoei
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Out of the possible allele combinations 50% will be heterozygous which is 500 of the 1000 seeds. 500/750 as a percentage is 67%
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helloworld121
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(Original post by kakaoei)
Out of the possible allele combinations 50% will be heterozygous which is 500 of the 1000 seeds. 500/750 as a percentage is 67%
Ah that makes sense now thank you!
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