In peas, the allele for tall plants is completely dominant over the allele for short plants. The quickest way to determine whether a tall pea plant is homozygous or heterozygous is to cross it with another plant which is:.

What type of competition exsist between two species. turtles and fish

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

20 point pls brianliest 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?