Our genes determine all of our physical traits - from our eye color to our fingerprints. Genes are found in chromosomes, which are made of DNA. There is one pair of genes for each trait in every chromosome. Our DNA has two genes for every trait, one gene inherited from each parent. It is the combination of these two genes in our DNA which give us the physical trait.
Answer and explanation
There are instances where taking any vitamin or mineral supplements will be unnecessary or even harmful.
Example
a) For children who are already drinking Fluoridated it will be unnecessary to give them Fluoride supplements
b) It is unnecessary to take supplements because you believe it can cure diseases. If you have a disease one should see a doctor
c) It can be harmful to take supplements that increase energy levels inthe body. It can lead to altered heart rhythm and eventually death
d)A doctor should be consulted before taking nutrient supplements such as Vitamin A. Most have a toxicity level and it is not necessary to take them unless there is deficiencies.
Answer:
They contain symbiotic rhizobia bacteria within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants; this helps to fertilize the soil
<span>The instructions for making new copies of a virus are *coded in either RNA or DNA.</span>
