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Title: What percentof the offspring will be HOMOZYGOUS if a HETEROZYGOUS ROUND seed plants crossed with a homozygous? Post by: Fire_Fly on Sep 25, 2012 What percentof the offspring will be HOMOZYGOUS if a HETEROZYGOUS ROUND seeded plants(Rr) is crossed with a homozygous round seeded plant (RR)
Title: What percentof the offspring will be HOMOZYGOUS if a HETEROZYGOUS ROUND seed plants crossed with a homozygous? Post by: Jujujugo on Sep 25, 2012 1/2 Will be homozygous dominant (RR)
1/2 Will be heterozygous (Rr) Title: What percentof the offspring will be HOMOZYGOUS if a HETEROZYGOUS ROUND seed plants crossed with a homozygous? Post by: rlc1226 on Sep 25, 2012 50% i f you do the punnet square two are RR and the other two are Rr
Title: What percentof the offspring will be HOMOZYGOUS if a HETEROZYGOUS ROUND seed plants crossed with a homozygous? Post by: rk_9897 on Sep 25, 2012 _________R______R x (Homozygous)
y (Heterozygous __R_____RR_____RR __r______Rr______Rr See the table? RR crossed with Rr would produce 2 homozygous and 2 heterozygous offspring, (50% RR and 50%Rr). Remember however that This is speaking strictly of the genotype. An RR has a homozygous genotype and will thus have a homozygous phenotype however the heterozygous offspring, (The Rr), will have a heterozygous genotype yet it will also show a homozygous phenotype because as I'm sure you know, R is dominant over r. Got it? For further help I highly recommend the Khan Academy, (best site on earth in my opinion), (Khanacademy.org) as well as another site that calculates Punnett squares for you, ChangeBioScience.org. The links are below. Enjoy! http://www.khanacademy.org/video/punnett-square-fun?playlist=Biology http://www.changbioscience.com/genetics/punnett.html |