Afarmer has two homozygous varieties of tomatoes. one variety, called little pete, has fruits that average only 2 cm in diameter. the other variety, big boy, has fruits that average a whopping 14 cm in diameter. the farmer crosses little pete and big boy; he then intercrosses the f1to produce f2 progeny. he grows 2000 f2 tomato plants and doesn’t find any f2 offspring that produce fruits as small as little pete or as large as big boy. if we assume that the difference between these varieties in fruit size is produced by genes with equal and additive effects, what can we conclude about the minimum number of loci with pairs of alleles determining the difference in fruit size between the two varieties?

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

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?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?