During DNA replication, the two strands separate as the hydrogen bonds connecting the parent strands are broken by an enzyme called helicase. In the DNA molecule (double strand) complementary bases are joined by hydrogen bonds; that is; Adenine paired to thyamine and guanine to cytosine; during replication the enzyme helicase separates the double helix by breaking the hydrogen bonds between the complementary bases.
There are living organisms that do these processes alongside one another to sustain a balanced cycle.
Answer:
True.
Explanation:
The hedgehog gene has the same role in humans and in fruit flies because this gene gives instruction to make proteins that are essential for the growth and development of the body. Genes have the recipes for making of proteins of all type. Genes have the same function in all type of organisms which is to give instructions to the cells for making proteins necessary for the growth, development and survival of that organism.
Answer:
The correct option is E.
Explanation:
Protein synthesis in living cells is divided into two distinct stages, which are transcription and translation. Transcription occurs in the nucleus where mRNA is formed from DNA. The mRNA then moved into the cytoplasm, where the process of translation takes place. Translation occurs in 5 stages and the accuracy of this process depend on the bonding of the anti-codon to the codon and the attachment of amino acids to tRNA.
tRNA (transfer RNA) plays a vital role in the translation process. It has very specific structures, which have the ability to bind to specific amino acids at one end and an mRNA molecule at the other end. This arrangement ensures that accuracy is maintained by making sure that each amino acid is carried to the appropriate point in the protein that is been synthesized based on the information in the mRNA.
Answer: the purpose is to help eliminate harmful germs or bacteria and can help prevent food-borne illness.
