Which two organelles are involved in the movement of a cell in its environment?

Flagella and cilia

Explanation:

Two of the organelles that are involved in the movement of a cell in its environment are the flagella and the cilia. Flagella can be described as a long structure shaping whip like which helps in the movement of single celled organisms. Like its structure, the cause the movement of the organism to be whip like. An "S" type motion is observed through the flagella present in the eukaryotes. Cilia is an organelle that can either be motile or non motile. Motile cilia take advantage of their cytoskeleton for movement.

explanation:

the sequence of amino acids in a protein determines its function. the dna sequence of a gene determines the amino acid sequence of the resulting protein. thus, any changes in dna sequence can result in changes in protein function. this is called a mutation.

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.

credit: gradman555p98x9p

read more on -