What is a missense mutation? a. a mutation that causes the code for the wrong amino acid b. a mutation that causes a person to have an extra chromosome c. a mutation that affects an entire chromosome d. a mutation that adds several extra bases to a gene

The correct answer is a mutation that causes the code for the wrong amino acid.

A missense mutation in genetics refers to a point mutation in which a change in a single nucleotide leads to a codon that code for a distinct amino acid. It is a kind of nonsynonymous substitution.

A missense mutation takes place when one nucleotide of DNA is modified so that a distinct amino acid is presented into a protein. A missense mutation refers to a mutation in which one molecule of DNA is switched out with another in a manner that modifies the specific amino acid.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.