Hoof type in pigs is determined by a gene with the dominant allele (H) resulting in a fused hoof while the recessive allele (h) gives rise to a cloven hoof. The color pattern of the animal’s coat is determined by a dominant allele (B) that results in a belted pattern or a recessive allele (b) that leads to a solid color. Give the possible genotypes and phenotypes of the progeny resulting from crossing a HhBB male with a HhBb female.

In pole beans, the color of the bean is controlled by a gene with the dominant Red (R) allele and pale-green (r) allele is recessive. The mode of growth, either climbing or bush is controlled by another gene on another set of homologous chromosomes. The climbing (B) mode of growth is dominant over bush (b). A red bush plant was crossed with a pale-green climbing plant. Of the offspring there were approximately equal numbers of red, climbing; red, bush; pale-green, climbing; and pale-green bush. Give the genotypes of the parents and offspring.

Respuesta :

Answer:

Problem 1: Give the possible genotypes and phenotypes of the progeny

F1) Genotypes:

  •     2/16 = 1/8 of the progeny will be HHBB
  •     2/16 = 1/8 of the progeny will be HHBb
  •     2/16 = 1/8 of the progeny will be HhBB
  •     2/16 = 1/8 of the progeny will be HhBb
  •     2/16 = 1/8 of the progeny will be HhBB
  •     2/16 = 1/8 of the progeny will be HhBb
  •     2/16 = 1/8 of the progeny will be hhBB
  •     2/16 = 1/8 of the progeny will be hhBb

    Phenotypes:

  • 12/16 = 3/4 of the progeny will be fuse-hoofed and belt-colored, H-B-
  • 4/16 = 1/4 of the progeny will be cloven-hoofed and belt-colored, hhB-

Problem 2: Give the genotypes of the parents and offspring.

  • red bush plant:  Rr bb  
  • pale-green climbing plant: rr Bb

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files