If the genetic code contained only three different bases instead of four, and these bases made up 3-base code words (codons), how many different codons would be possible?

27

Explanation:

Genetic code has a different combination of four different bases. Each genetic code is made up of three nucleotides. Therefore, either of the four bases may be present in a genetic code at three different positions. This gives a total of 4^3 = 64 different genetic codes to specify amino acids. If there were only three bases in genetic code, either of the three bases may be present at each position of the triplet codon. This would give a total of 3 x 3 x 3 = 27 different genetic codes to code for different amino acids.

not sure if this what   you'r looking for would be percent composition

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle