Answer:
A. Both sexual and asexual spores are produced by meiosis
Explanation:
1. A transgenic organism expresses DNA that has been derived from another species. These organisms have altered genomes and are generated in the laboratory for the purposes of research, for example, the "knock-out" mice are tansgenic mice with a particular gene of interest disabled.
2. Recombinant DNA is the DNA that has been altered to contain genes, or portions of genes, from different organisms. The DNA molecules are formed in the lab using recombination methods to bring together genetic material from multiple sources and therefore creating sequences that are not found in the genome.
3. Restriction enzymes are found naturally in bacteria and they cut DNA at specific nucleotide sequences. These enzymes are also called restriction endonucleases, they cleave DNA into fragments at or near specific recognition sites called restriction sites. They are found in bacteria and archaea and they serve to provide a defense mechanism against invading viruses.
4. Biotechnology is the use or alteration of organisms, cells, or biological molecules to produce food, drugs, or other goods. Living systems and organisms are used to make or develop products. Biotechnology enhances cellular and biomolecular processes to develop technologies and product for the purposes of improving life and health.
5. Polymerase chain reaction is a technique that is used to quickly synthesize billions of copiies of a specific segment of DNA. It is a quick and a very efficient way to generate many copies of DNA. The process is applicable when there are small quantities of DNA to analyze. The events of PCR involves; separation of DNA strands, addition of primers, use of DNA polymerase to produce second strand of DNA.
6. In the process known as transformation, bacteria take up pieces of DNA from the surroundings. Bacterial transformation results from the uptake of naked DNA (DNA without associated cells or proteins). Transformation may also occur naturally in some species of bacteria.
Answer:
stimulates production of red blood cells is a correct answer.
Explanation:
function of the hormone erythropoietin: stimulates production of red blood cells
Erythropoietin hormone is produced by the kidney and its function is to promotes or support the formation of the red blood cells and to provide protection to the cells from the destruction.
Erythropoietin hormone stimulates the bone marrow to produce red blood cells and the function of the red blood cells is to transport oxygen to the body.
Answer:
A
Explanation:
This is a double membrane organelle of 0.5- 1 to 1 micrometer in diameter; and 7 micrometre in length.
Since the resolution of light ,microscope is less than 200nm; only the mitochondrion can be seen with this microscope.
The mitochondrial functions a s the power house of the cell. for generation of ATPs
Howevrer the parts of other options are closer than 200nm in diameter and are ; therefore are not visible to this microscope.
The condition in which the body immune system is completely failed to resist any sort of pathogen is called AIDS.
Our immune system is consist of cells proteins and organs which are involve in our immune system. When any component is failed to perform it’s function then it leads to AIDS.
AIDS refers to the last stage of destruction of lymphocytes.
The causual agent for aids is HIV(human immuno deficiency virus).
