Describe the role of dna helicase, dna polymerase and dna ligase in dna replication? this is from my biology homework and it isnt covered in the book believe it or not, none of these words are in the glossary and i have no idea what i'm doing. any would be appreciated. describe the role of dna helicase, dna polymerase and dna ligase in dna replication

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

the index of refraction of the second medium is higher. i just took the test trust me !