The genetic characteristic of two different organisms are induced into a new host organism for the purpose of producing new genes.
<u>Explanation:</u>
In the field of bio technology, Recombinant DNA technology plays a very important role. This helps in the production of genes. The first thing insulin of human was produced with this technology. In this technology, the gene that is to be produced is cut and it is placed inside a host organism where it gets multiplied.
This technology uses five steps in gene production. Firstly, the DNA that is essential will be cut. this is done by restriction site. PCR is used secondly in order to amplify the copies of the genes. Then these are induced into Vectors after which they will again be introduced into a host organism. Then finally the results will be the genes of the desired characteristics.
Paramecium are oval-shaped, have two nuclei (one large and another small), and has cilia unlike amoeba and euglena. Euglena, instead of cilia, has a flagellum that is uses for locomotion. Euglena also has an eyespot that is sensitive to light and have green chlorophyll pigment. Amoebas have no fixed shape and have no cilia or flagella. They move by use of pseudopodia.
Answer:
Ozone is formed in the stratosphere naturally.
High energy solar radiation strike the oxygen atoms O2, the two atoms split apart. The freed atom collides with another oxygen atom O2 forming O3 (Ozone)
Ozone layer is destroyed when chloroflourocarbons and halons.
CFCs and halons cause chemical reactions that break down ozone molecules. Consequences ofnozone depletion are that UV radiations are not filtered and they reach the earth causing damage to eyes and skin.
Explanation:
Ozone layer is a protective layer which protects from UV damaging radiations. It is formed when oxygen atoms are broken down by photolysis and a freed oxygen atom combines with another amd form O3.
Ozone is being depleted now because chlorofluorocarbons (CFCs) and halons—gases found in aerosol spray cans and refrigerants—are released into the atmosphere they decrease the ozone's ultraviolet radiation-absorbing capacity.Ozone layer depletion causes increased UV radiation levels at the Earth's surface, which is damaging to human health. Negative effects include skin cancers, eye cataracts and immune deficiency disorders.
Answer:
Different genes are expressed in different cells
Explanation:
The instruction is provided to the cell by the genetic material in the form of genes. Genes are the physical segment present on the DNA which can code for a specific protein.
The genes are present in the cells in the condensed form called chromosome which is present in all the cells of the body.
Although all the cells contain the same type of chromosomes or genes but they differentiate to perform different functions.
The differentiation process involves the expression of different genes in different cells as a result of which different proteins are formed in different cells and they perform different functions.
(1) Meteorological/Climate factor: -Rainfall intensity -Rainfall amount -Rainfall duration -Distribution of rainfall over the drainage basin. (2) Phsyiographic factors (e.g. watershed) - watershed size -Watershed shape -watershed slope (3) Vegetation - Dense vegetation leads to less run-off while sparse vegetation leads to more run-off. (4) Urban development. - Roads and buildings have do not allow infiltration into the soil. Water will therefore run off directly into the stream, at a very fast rate and in significant volume.
