Answer:
Carbon, Hydrogen, Oxygen, Nitrogen
Explanation:
The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen. With carbon and hydrogen present, other elements, such as phosphorous, sulfur, silicon, and the halogens, may exist in organic compounds.
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
Because the mutation which does not have any effect on protein code I.e. even after the mutation if the gene still codes the same protein is called silent mutation
Answer:
1. First calculate the distance of the map for trace (eg) and spastic mutation (sps); Recombinant frequency:
vg + sps + vg sps + = 99 + 97 = 196
we are going to divide 196 by 650 (total descendants) = 0.3.
in the next step we are going to calculate the recombinant frequency 0.3 * 100 = 30 mu or cM or 30%
this shows that there is an association between vestige (eg) and spastic mutation (sps) since the recombinant frequency is less than 50%.
The squareness test is not valid because the combining frequency is far from 50%.
2. Results:
1. Genes are linked.
3. The test rejected the independent assortment law because it is not true that there is a 1: 1: 1: 1 relationship between descendants
