Why did the F1 offspring of Mendel's classic pea cross always look like one of the two parental varieties?

A) No genes interacted to produce the parental phenotype.
B) Each allele affected phenotypic expression.
C) The traits blended together during fertilization.
D) One allele was dominant.


D

Biology & Microbiology

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a. CO2 b. G3P c. RuBP d. NADP+ e. pyruvate

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Specialized parenchyma cells, known as ________ cells, occur along with sieve-tube members.

Fill in the blank(s) with the appropriate word(s).

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Histone tail modifications establish and maintain the different chromatin structures found in heterochromatin and euchromatin.

a. true b. false

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