Bacterial flagella are chemically composed of pure (a type of polymer), and the polymer is known as

Of the following given choices;

A.Carbohydrates, Starch

B.Nucleotides, DNA

C.Fats, Oleic acids

D.Protein, Flagellin

The answer is; D.

The protein flagellin is a globular protein. When the units bond in sequence, they form a hollow filament shaped like a helical screw. It propels the bacteria by rotating like a motor powered by proton motive force.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.