If blue eyes is dominant over brown eyes, how can two brown-eyed parents have a blue-eyed child?
a. both parents were homozygous for brown eyes.
b. both parents were heterozygous for brown eyes.
c. the mom was homozygous for brown eyes and the dad was heterozygous for brown eyes.
d. the mom was heterozygous for brown eyes and the dad was homozygous for brown eyes.

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?