Correct answer - Replace Thymine (T) with uracil (U) in the DNA molecule.
Why? - As the RNA polymerase continues down the strand of DNA, more nucleotides are added to the mRNA, thereby forming a progressively longer chain of nucleotides. This process is called elongation. DNA (top) includes thymine (red); in RNA (bottom), thymine is replaced with uracil (yellow).
Acids: hydrogen ions; bases: hydroxide ions
Answer:
The nitrogen cycle is one of the most important cycles through which nitrogens move from the environment into organisms and from organisms back into the environment.
Decomposers are an important part of this cycle as the cycle is maintained due to these organisms.
The nitrogen-fixing bacteria change nitrogen into a kind which can be broken and be used by other organisms.
The Ammonifying bacteria (decomposers) feed on dead, decay material and break down ammonium compounds and convert them to other nitrogenous compounds.
Nitrifying bacteria convert the ammonium compounds into nitrites and nitrates.
Denitrifying bacteria convert nitrates into nitrogen gas to release it back into the atmosphere.
Answer:
It results in the production of new combinations of alleles due to which offspring can have different characters than both the parents.
In meiosis, the genes are randomly segregated and the alleles of genes are independently assorted to produce haploid gametes.
When the gametes of male and female fuses, they form the zygote with a unique or new combination of alleles as compared to that of parents.
It increases the genetic variations in the population.
