Tongue-rollers are dominant, and are represented with a capital r. non-
rollers are recessive, and are represented with a lowercase r.
if a person received the allele for the ability to roll her tongue from her
mother, and the lack of ability to roll her tongue from her father, what would
be her genotype and phenotype?
oa) rr; non-roller
ob) rr; non-roller
c) rr; tongue-roller
od) rr; tongue-roller
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80 points pls 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?