Hi.
After a quick search, I'm pretty positive you're supposed to use the wafting technique.<em>
</em><em />Hope this helps.<em>
</em>
Looking at the onion root tip under the microscope you can see large, rectangular cells with visible distinct cell walls surrounding it (cells have a more regular shape because of the wall). Inside the cells, you can notice darkly stained nucleus, large vacuoles at the center and sometimes small granules within the cytoplasm. Looking the onion root tip under the microscope is often the way to observe mitosis. Usually, you cannot see organelles such as mitochondria, ribosomes, rough and smooth endoplasmic reticulum, centrioles and Golgi body as they appear translucent and because are too small to be seen under the light microscope (electron microscope required). Also, chloroplasts are not present in an onion cell because it is not a photosynthetic cell.
Answer;
a segment of chromosomal DNA
Explanation;
A gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.
It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.
Answer:
1 ma /b/ correct answer 2 ma /a/ correct answer
Answer:
Explanation:
<u>Antibiotics:</u>
"Medicines used against bacteria are called antibiotics."
<u>Example:</u>
Rifampin, isoniazid.
Mycobacterium Tuberculosis is a bacteria.
However, some of its strains are resistant to antibiotics and thus is classified as multidrug resistant (MDR resistant)
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Hope this helped!
<h3>~AH1807</h3>
