Los perros de raza Cockerspaniel pueden ser de color negro o rojo, los cuales a su vez pueden ser uniformes o manchados. El color negro y el patrón manchado son dominantes. Se cruzan perros negros manchados con rojos uniforme. Determine fenotipo y genotipo de F1 y F2 resultante

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey