In drosophila, the gene for eye color is located on the X chromosome. The allele for red eyes (R) is dominant over the allele for white eyes (r). A red-eyed fly with the genotype XRXr is crossed with a white-eyed fly with the genotype XrY. What percentage of the male offspring could be born with white eyes?

75%

50%

25%

0%

Animals such as pronghorn antelope, bison ans badgers dot to the landscape. where are these animals located?

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water