<span>The question says,'...........convert ammonium into nitrates whilw .........converts nitrates into nitrogen gas. The correct option is A. Nitrification is a two stage process by which ammonia or ammonium is biologically oxidised to nitrate while dentrification is the biological oxidation of nitrate to nitrogen gas by dentrifying bacteria.</span>
It’s a recessive genetic disorder
Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.
Answer:
melanin is the pigment and it helps it helps light reflection in the eye
Explanation:
<span>The question says, a scientist is carrying out replication of DNA artificially in her laboratory. What will she use to join the gaps on the DNA strand? They correct option is DNA ligase. DNA ligase is the enzyme which specializes in facilitating the joining of DNA strands by catalysing the formation of phosphodiester bonds.</span>