an egg cell has a haploid nucleus so it has half the number of dna because it fuses with a sperm cell to have the full amount of dna.
an egg cell has 23 chromosomes and a sperm cell has 23 chromosomes.
they both have half the amount of dna to form a zygote
Deoxyribonucleic acid or DNA is a chemical that contains nitrogen and is very important for living organisms. It plays and important role in making up the genetic constitution of the cell. It is hereditary and passes from one generation to another.
DNA is double stranded helix which coils and binds to non-histone proteins to pack inside the nucleus of the cell. Every living organism contains DNA or RNA as a genetic material.
Answer:
Advantages of classification:
- Allow us to see a species more detail than when we not classified it
- Catergorizing things, we can know them kind better and we can make judgement, opinion for the whole class in general
AND MANY OTHERS ADVANTAGES
Disadvantages of classification:
- Some classification is made by group, person and not everyone contribute, agree to that idea so there may lead to wrong classified
- And this classification stuff is made by HUMAN and it is just what human want species in this world to be classified, not nature classification!
Hope this helped :3
There are different types of channels for blood flow that transport the blood pumped by the heart. They greatly differ only in the size of their diameters. Arteries are the big ones that are located mostly near the heart. Veins are the next which is where nurses inject you to gather blood. Then, the smallest ones are the capillaries.
