Meiosis produces 4 haploid cells. Mitosis produces 2 diploid cells. The old name for meiosis was reduction/ division. Meiosis I reduces the ploidy level from 2n to n (reduction) while Meiosis II divides the remaining set of chromosomes in a mitosis-like process (division).itosis produces 2 diploid cells. The old name for meiosis was reduction/ division. Meiosis I reduces the ploidy level from 2n to n (reduction) while Meiosis II divides the remaining set of chromosomes in a mitosis-like process (division).
Pilot Duty Ratings. A Relay can be assigned a Pilot Duty Rating when it is used for switching loads on another relay, or solenoid valve coils. It can be a direct current (DC) rating, or an alternating current (AC) rating, as shown in the table at the bottom of this post. The Pilot Duty Ratings are obtained after performing product qualification tests.
The spacecraft pilot is the astronaut who directly controls the operation of a spacecraft, while located within that same craft (not remotely). This term derives directly from the usage of the word pilot in aviation, where it is synonymous with aviator. Note that on the N.A.S.A Space Shuttle, the term pilot is analogous to the term co-pilot in aviation, as the commander has ultimate responsibility for the shuttle.