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How many gametes can a GgTt pea plants produce?
A pea plant with the genotype GgTt can produce 4 types of gametes: GT, Gt, gT, and gt. This is based on the principle of independent assortment where different gene pairs segregate independently of each other during gamete formation.
Is RR X Dd a dihybrid cross?
The cross RR X Dd is showing two different genes for the parents (it is showing RR for one parent and Dd for the other) - therefore this is not a dihybrid cross. However, if it was RRDd X RRDd, this would be a dihybrid cross. For a dihybrid cross, you need to include two different genes (and show these genes in both the parents). So - BbFf X bbff, GGTT X ggtt, KKPp X KkPp - are all examples of dihybrid crosses.
How many gametes can a GgTt pea plants produce?
A pea plant with the genotype GgTt can produce 4 types of gametes: GT, Gt, gT, and gt. This is based on the principle of independent assortment where different gene pairs segregate independently of each other during gamete formation.
What is the phenotype ratio of GgTT X ggTt?
The phenotype ratio of GgTT X ggTt is 1:1. This cross involves genes segregating independently, leading to one genotype (GgTt) that shows the dominant phenotype and one genotype (ggTT) that shows the recessive phenotype.
What is trihybrid cross?
A dihybrid cross is a cross between a P generation that differs in two traits rather than one. For example, a pea plant that is homozygous for the dominant green pod color (GG), and dominant tall height (TT) crossed with a pea plant that is homozygous for the recessive yellow pod color (gg) and recessive short height (tt) will produce hybrid offspring that are heterozygous for pod color and height (GgTt), and will have green pod color and tall height. GGTT x ggtt --> GgTt
Is RR X Dd a dihybrid cross?
The cross RR X Dd is showing two different genes for the parents (it is showing RR for one parent and Dd for the other) - therefore this is not a dihybrid cross. However, if it was RRDd X RRDd, this would be a dihybrid cross. For a dihybrid cross, you need to include two different genes (and show these genes in both the parents). So - BbFf X bbff, GGTT X ggtt, KKPp X KkPp - are all examples of dihybrid crosses.
