1) chromosome
C) chemicals in plants or animals that make a natural process happen
2) enzyme
A) all of the genetic material contained in an organism
3) genome
. B) the parts of a cell that contain genes and that dictate how an animal or plant develops
hope this helped you:)
Uranium-238 is found only in igneous or volcanic rocks. They can date a very ancient fossil also but carbon cannot date and ancient fossil. Trees are not very ancient. Carbon-14 can be used to measure only fossils of recent age.
Answer:
Crossing over is the process in which the homologus chromosomes exchange their chromatids and exchange the genetic material and produce variation
it is the process that make meiotic cells genetically different and occurs during prophase I, but not during prophase II
hope it helps
Read more on Brainly.com - brainly.com/question/1622106#readmore
Explanation:
Huh well this one is a little bit harder because I'm not sure what the double letters are but from the rest I can defiantly tell you they are phenotypes. Here is a really easy way to remember the difference. Think of it as genotype are the traits/genes that we cannot see and phenotype are the traits/genes we can see like Blue eyes, green eyes, tall short. All the genes/traits that u cannot see would be a genotype. Or you could thing of phenotypes being the adjective. It's deceiving what the person or thing appears to look like.
