Now we are looking on the crossword clue for: Aircraft without a pilot.
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Possible Answers:
Drone.
Last seen on: Daily Celebrity Crossword – 7/16/20 Top 40 Thursday
Random information on the term ” Drone”:
A drone is a male honey bee. Unlike the female worker bee, drones do not have stingers and gather neither nectar nor pollen. A drone’s primary role is to mate with an unfertilized queen.
Drones carry only one type of allele at each chromosomal position, because they are haploid (containing only one set of chromosomes from the mother). During the development of eggs within a queen, a diploid cell with 32 chromosomes divides to generate haploid cells called gametes with 16 chromosomes. The result is a haploid egg, with chromosomes having a new combination of alleles at the various loci. This process is called arrhenotokous parthenogenesis or simply arrhenotoky.
Because the male bee technically has only a mother, and no father, its genealogical tree is unusual. The first generation has one member (the male). One generation back also has one member (the mother). Two generations back are two members (the mother and father of the mother). Three generations back are three members. Four back are five members. That is, the numbers in each generation going back are 1, 1, 2, 3, 5, 8, … – the Fibonacci sequence.