Revealing of genotypical features, defining individual distinctions(differences) in
stability of biological objects to the factors of space flight (research on плодовой
Drosophila melanogaster) "
Purpose of experiment
connections between adaptation parameters of fruit little flies populations and
their genetic structure.
Equipment to be used
Composition of the equipment
Two kits " Drosophila". Each
kit contains 10 containers (containers – test-tubes) with larvae of the flies
(100 pieces in each) and nutritious medium.
Assignment of the equipment:
Exhibiting in conditions of space flight of containers with
populations of fruit little flies "Drosophila melanogaster".
Principles of the equipment operation.
The containers are supplied with stainless steel made inserts intended
for overlapping of the flies’ life zone, which is a jelly-like nutritious
medium. The overlapping of "window" is carried out by turning on 180 degree
axes of test-tube with the sector, fixed on it, with the help of key placed on
the shell of "Drosophila"
kit case. The rotation of sector limits by a pin.
Mass (of 1 kit): 1,5 kgs
Dimensions (of 1 kit): 275х90х130 mm.
Work of crew with the equipment.
Employment of cosmonaut.
Under space environment conditions the development and
change of several generations of the flies happens. Open before with launch of
the space vehicle "window" ensures access of larvae and flies to a
nutritious medium. Before returning of kits to the Earth the cosmonaut realizes
operation on overlapping access of the flies to a nutritious medium by a turn of
a key up to a position "Closed" with registration of experiment with
help of photo or video cameras. The realization of shootings in the educational
purposes - behavior of the flies at microgravity conditions (space experiment
"Zebra-PR") is possible.
Conditions of the experiment realization.
After a docking of "Soyuz" space vehicle with ISS RS the "Drosophila"
kits are transferred to the service module (as it is possible closer to time of
docking) and are installed in a place of accommodation with environmental
temperature of +18°C
Temperature is inspected on a telemetry data link with the help of
regular temperature gauges located near to kit.
Accommodation of kit in capsule (for want of returning) should be
conducted with allowance for of requests about direction of overloading
influence. The arrow "Direction of overloading" is designated on a
surface of "Drosophila"
kit. On a landing area of capsule the kits are handed over to the representative
of experiments PI IBMP of Russian Federation.