In a diploid species of plant, the genes for plant height and fruit shape are sy
ID: 23813 • Letter: I
Question
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit.A plant with the genotype Dr/dR produces gametes. Identify gamete genotypes, label parental and recombinant gametes, and give the frequency of each gamete genotype.
A)Parental: 9% DR, 9% dr; recombinant: 41% Dr, 41% dR.
B)Parental: 41% DR, 41% dr; recombinant: 9% Dr, 9% dR.
C)Parental: 41% Dr, 41% dR; recombinant: 9% DR, 9% dr.
D)Parental: 9% Dr, 9% dR; recombinant: 41% DR, 41% dr.
Explanation / Answer
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit.
A plant with the genotype Dr/dR produces gametes. Identify gamete genotypes, label parental and recombinant gametes, and give the frequency of each gamete genotype.
A)Parental: 9% DR, 9% dr; recombinant: 41% Dr, 41% dR.
B)Parental: 41% DR, 41% dr; recombinant: 9% Dr, 9% dR. -----answer
C)Parental: 41% Dr, 41% dR; recombinant: 9% DR, 9% dr.
D)Parental: 9% Dr, 9% dR; recombinant: 41% DR, 41% dr.