Dimples (d) and brown hair (a) are dominant traits. answer the following questions based on the dihybrid cross shown:
1) what genotype(s) would result in a phenotype of dimples and brown hair?
2) what genotype(s) would result in a phenotype of dimples and blonde hair?
3) what genotype(s) would result in a phenotype of no dimples and brown hair?
4) what genotype(s) would result in a phenotype of no dimples and blonde hair?
5) what is the phenotypic ratio for this cross? (be sure to use words to indicate which number goes with which phenotype! )

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? 1 even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. 2 the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. 3 flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. 4 in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome