Abreeder crossed true-breeding t/t r/r plants with true-breeding t/t r/r plants to generate heterozygous f1 plants. when backcrossing these f1 plants as female parents to the homozygous recessive strain as a male (pollen) parent, the breeder noticed that one f1 plant gave unexpected results. there were only half as many kernels as usual on the corn cobs, and the phenotypes of plants grown from those kernels indicated they had the following genotypes in the numbers indicated below. genotype #t/t r/r 98t/t r/r 104t/t r/r 3t/t r/r 5breafly describe the chromosom between these two genes in the unusual f1 plant.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

so whats the answer

well, i believe that the answer is 2. : 3

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.