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When punnet squares for dominant and recessive genes are drawn for people, do they imply nucleic DNA or mitochondrial DNA? In a plant's punnet square, is it either of those or chloroplastic DNA? What are the differences?

2007-12-15 10:29:58 · 2 answers · asked by Anonymous in Science & Mathematics Botany

2 answers

The Punnett squares have nothing to do with the mitochondrial or the chloroplast DNA. Those are copied when the cytoplasm is increased during the G1 and G2 stages of interphase. The Punnett squares only deal with the genes or alleles that are on the chromosomes that are in the nucleus.

The mitochondrial DNA and chloroplast DNA would only be passed along in the maternal cells.

2007-12-15 15:12:39 · answer #1 · answered by ecolink 7 · 0 0

Your question is confusing, First you state that you want to draw a punnet square for plants, but then say you want to draw one for people?

BB = Two Dominant.

Bb = Dominant and Recessive.

bb = two Recessive.

A Punnet sqaure is Diamond shaped.
I have no clue what you mean by Nucleic, Nucleic or Clhoroplastic DNA. That was never mentioned in my Botany class, perhaps we didn't dwell too much into that.

2007-12-15 21:15:37 · answer #2 · answered by Lisa v 2 · 0 0

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