Questions
1.what conclusions can you draw about the results of your first cross between a homozygous red bull (rr) and a heterozygous red cow (rr)?
2.what conclusions can you draw about the results of your second cross between a heterozygous red bull (rr) and a heterozygous red cow (rr)?
3.what conclusions can you draw about the results of your third cross between a homozygous white bull (rr) and a homozygous white cow (rr)?

refer to the attachment !

answer 1 : therefore:   crossing results in 50% (dominant homozygote) and 50% (dominant heterozygote).

answer 2 : therefore:   crossing results in 25% (dominant homozygote), 50% (dominant heterozygote) and 25% (homozygous recessive).

answer 3 : therefore:   crossing results in 100% (homozygous recessive).

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation: