The stage of mitosis where the chromosomes line up is called metaphase.
Add the protons and neutrons to find atomic mass 5+4=9. the atomic mass is 9
Answer:The helix structure Of DNA helps prevent it from been expose and also the sugar and phoshate group that are important components of nucleotides forms a backbone on the helix structure or the polynucleotide this back bone is hydrophobic i.e water loving hence wouldn't allow for penetration for water.
2. Hydrogen bond is formed between this bases to keep them in place.
Explanation:
Answer:
A subkingdom of green plants that make up vegetation on earth.
Explanation:
Embryophyte is a major grouping of plants that have enclosed embryo as within a seed. They are sometimes known as land plants.
It might be carbon, I think this because of the pencil having graphite which is made of carbon.