During the process of replication, the double stranded DNA unwinds and parts itself by the action of enzyme called as Helicase. The unwinding or separation of DNA forms a replication bubble and at the edge of the replication bubble is the replication fork.
DNA replication starts at the point called as origin of replication or ORI at the replication fork. DNA polymerase is the enzyme that plays a key role in DNA replication. DNA continues to replicate until the entire new strand is not formed.
Explanation:
Molecules of reactants and products undergoes chemical changes when they combine.
The combination leads to the breaking of bonds and rearrangement and this brings about the formation of new products.
- Atoms in molecules tends towards stability
- They often want to mimic the noble gases and would keep rearranging until stability is attained.
- This leads to the formation of new compounds in the product end of the reaction.
Answer:
The answer is D(sexes)
Explanation:
This is because monozygotic twins are genetically nearly identical and they are always the same sex unless there has been a mutation during development.
Answer:
PLATO
The conservationists effectively identified a problem, specifically that young penguins were underweight. They fed the young birds, increasing the probability that they would reach reproductive age. The program also ensured that the young penguins could survive in the wild, by teaching them survival skills. A limitation of this program is that after the birds return to the wild, they face the same problems of high competition and limited food supply. Although the program increases their chances for reproduction, it doesn’t guarantee that they’ll be successful.
