Answer:
The four nitrogenous bases that are present in DNA are adenine, guanine, thymine and cytosine. These nucleotides can be radiolabelled before the new DNA forms and the composition of specific nucleotide of DNA can be estimated.
During the experiment, research team found that the incorporation of radioactive nucleotides composition increase after the introduction of pathogen in the culture. This means that the cell starts producing more number of cell to fight against the pathogen. The infection of pathogen is mainly responsible for the division of lymphocytes more rapidly.
Answer:
a plasma membrane: an outer covering that separates the cell's interior from its surrounding environment.
cytoplasm: a jelly-like cytosol within the cell in which other cellular components are found.
DNA: the genetic material of the cell.
ribosomes: where protein synthesis occurs.
Explanation:
Answer:
Specitation increases biodiversity, while extinctions decrease biodiversity.
Explanation:
Biodiversity is the variety of life on Earth or some specified geographic area of the planet; the diversity of life occurs at the genetic level, at the species level, at the ecosystem level, and in evolutionary lineages.
The most common incorrect description is that the heart is enclosed in a double-layered sac called the pleural membrane. The reality is that the heart is enclosed in a double-layered membrane called the pericardium. The correct layers from out to in are <span>epicardium, myocardium, endocardium </span>
Answer:
Due to large size of genome.
Explanation:
The study of wheat genome is difficult task because of its large size. The genome of wheat comprise of 15 billion DNA bases. The wheat genome is three times bigger in size as compared to the genome of mammoth. Mammoth is an extincted specie of elephant which were the biggest land animal at that time. So due to large genome size of wheat, the scientists takes more time to complete its sequencing (order of nucleotide in the DNA).
