The process wherein acidity or heat disrupts or destroys the normal shape of a protein is called denaturation. It involves the losing of nucleic acids their quaternary, tertiary and secondary structure. However, this reaction is not enough to break the peptide bonds so the primary structure remains.
Answer:
2 chromosomes
Explanation:
The cell of an eukaryotic organism like roundworm contains the Nucleus, which harbors the genetic material embedded in the chromosome. The number of chromosomes of that organism is contained in each cell.
Somatic cells, also called body cells, are all other cells asides sperm and eggs, that form the tissues and organs of an organism. Somatic cells are usually diploid i.e two sets of chromosomes from each parent. In this question, the roundworm has 4 chromosomes in its somatic cell.
The reproductive cells or sex cells (sperm and eggs) of an organism always result from meiotic division of specialized cells.
Since meiosis is a kind of division that results in cells with their chromosome number reduced by half (haploid), it therefore means that the ovum and sperm cell will be expected to contain 2 chromosomes each.
This way, when fertilization occurs (sperm and egg fusion), the resulting zygote, which will eventually develop into an adult organism, will have 4 chromosomes.
Answer:
Bonded to meteorites that hit the Earth
Explanation:
The<u> origin of water on Earth</u> is being linked to the existence of very old meteorites that have been found on Earth. The<em> "Carbonaceous chondrites," </em>which are meteorites, have a similar content to that of seawater. Its<u><em> isotope levels</em></u> for hydrogen and nitrogen are similar with <em>Earth's seawater</em>. They're believed to have come from the outer asteroid belt and later on delivered water to Earth after collision.
