Lets see this with example
if you put a red blood cell in a glass of water the red blood cell is in hypotonic solution and that water flows into less concentrated area ( in to the red blood cell ) which eventually will swell and burst.
Another plot is when we put the same red blood cell in a glass full of salty solution which is Heterogeneous solution. In these case the water will move out from the cell to the solution which cause the cell to shrink.
Explanation:
Option first is the correct one
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.
True, Methane is a greenhouse gas
