Which of the following genotypes would result in a green monster? (Select ALL the genotypes ; that apply.) hhAA HHAA Hhaa HhAA hhAa HhAa HHAa hhaa HHaa

Let's assume the monster's color is determined by two genes:<br /><br />* **H/h gene:** Dominant H leads to some color (let's say it allows pigment production), while recessive h leads to no color (no pigment).<br />* **A/a gene:** Dominant A leads to yellow pigment, while recessive a leads to blue pigment. If H is present, these pigments combine to make green (yellow + blue = green).<br /><br />With this logic:<br /><br />* **hh** genotypes will *always* result in a colorless (likely white) monster regardless of the A/a genes, because no pigment is produced. So, hhAA, hhAa, and hhaa are eliminated.<br /><br />* **H_** genotypes (where _ can be either A or a) *can* produce color. If the monster produces color, the A/a gene determines *which* color.<br /><br />* **AA** or **Aa** genotypes will result in yellow pigment being produced. Combined with the H gene allowing color, this yellow + blue will result in a green monster.<br /><br />* **aa** genotypes will result in *only* blue pigment. Since there's no yellow to mix with, the monster will be blue, not green. This eliminates HHaa.<br /><br />Therefore, the genotypes that result in a green monster are:<br /><br />* **HHAA**<br />* **HhAA**<br />* **HhAa**<br />* **HHAa**<br />