In a particular animal, coat color is under the control of two interacting genes. Each gene has a dominant and recessive allele. A = Color, a = Albino, and B = Brown coat color, b = Red coat color. Two AaBb animals are mated. What proportion of their offspring is expected to have a red coat? Assume the genes are assorting independently.

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a. one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b. one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c. one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.

Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell

What does the number 18.9984 represent in the image?