The hormone that stimulates milk synthesis is

Prolactin

Explanation: During breastfeeding the anterior pituitary gland in the brain releases hormone prolactin as part of positive feedback mechanism. A mothers alveoli will collect nutrients from the blood and convert them into milk. Another hormone oxytocin, causes the muscles around the breast to eject milk (a let-down reflex) whilst a baby is sucking.

A sucking baby is actually a positive feedback that causes the brain to release more prolactin, which in turn causes the alveoli to convert more sugars and nutrients into milk.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

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answer: all : )

explanation: