I would say all of the above
Is that an option?
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Cell is the building blocks of a living things.
The size of the bacteria can vary from 0.0005cm-0.0015cm.
Bacterial cells are the smallest as they can be as small as 0.00005cm.
The largest cell in our body is the nerve cells as they extend from head to toe. the egg of the ostrich is the largest -single cell.
There are unicellular organisms like amoeba and multicellular organisms like plants and animals.
The given section of DNA is known as a gene.
Explanation:
The basic physical as well as fundamental unit of heredity is known as gene. Genes are built with DNA. According to Human Genome Project human have estimated between 20000 to 25000 genes. In Every person two copies of each gene are present which is carried from parent.
In most of the genes are common almost every people but less than 1% of genes are different between people. The role of gene is to determine the trait- how we look and also other stuff about us.
I had a question like this so i'm rolling with (B)
