2. In crossing a homozygous recessive with a heterozygote, what is the chance of ... In cattle, roan color (mixed red and white hairs) occurs in the heterozygous (Rr) ... with another roan (Rr x Rr), will result in 1:2:1 genotypic and phenotypic ratio. ... In humans, the allele for short fingers is dominant over that for long fingers.Answer:
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<span> H2O2 H2O </span><span>catalase</span> Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.