Aminoacyl-tRNA synthetase is an enzyme that is responsible for attaching the correct amino acid to the tRNA molecule. As the mRNA transcript is read by the ribosome, the complementary tRNA molecule then brings the
correct amino acid to the polypeptide chain. Although aminoacyl-tRNA synthetase is very accurate, it will rarely
attach the wrong amino acid to the tRNA. Which of the following could be the cause of an error in this process
that results in the histidine amino acid being substituted for a phenylalanine amino acid, causing a misfolding of
polypeptide chain?
The wobble effect of RNA will allow aminoacyl-tRNA synthetase to bind to a group of amino acids.
Aminoacyl-tRNA synthetase will change the structure of the tRNA to allow for binding to a different amino acid.
O Certain amino acids have very similar structures in their attachment ends and can cause aminoacyl-tRNA
synthetase to bind to the wrong amino acid.
O Aminoacyl-tRNA synthetase determines if a misreading error has occurred by the ribosome and will replace the
tRNA anticodon to pair with a different amino acid.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

the correct answer is d

the answer is sex-linked recessive.

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