ALAT study questions
How many classes of biosafety cabinets are available?
3
To reduce the possibility of cannibalism, female hamsters with newborns should not be disturbed until the pups are what age?
7 days old
Male gerbils reach sexual maturity at ___
70-85 days
How often must the drop pans of rats be cleaned?
At least twice a week
What is the scientific name of the cat?
Felis catus
What are nonliving items or materials that transmit infectious organisms called?
Formites
What is it called when animals are born fully furred, with eyes open?
Precocial
What is the scientific name for the genus of Squirrel monkeys?
Saimiri
Why is the tip of the upper beak sometimes removed from chickens?
To control cannibalism and fighting
What color is a strain 13 guinea pig?
Tricolor
Water hardness refers to the amount of _________
calcium and magnesium ions in the water
What characteristics to female goats display during estrus?
Twitching their tails and bleating
If a female rat does not mate during her postpartum estrus, how long does it take her to start cycling again after giving birth?
About 2-4 days after the weaning of her litter
What is the most common form of enrichment for mice?
Group housing
Mix-ups in animal numbers, errors in weighing animals, and variations in room temperatures are all examples of_____
non-experimental variables
What is the normal life span of a minipig?
10-15 years
What is the weight of an average adult female mouse?
18-35 grams
How much pelleted feed do sheep eat, per 100 kg body weight?
2-3 kg
How much does the average adult male rat weigh?
300-500 grams
What would be an appropriate housing density for newly hatched tadpoles?
50 per liter of water
What is the optimum pH for water in a fish tank?
6-8
Aquatic caging must have which two features?
A water source and a drain
Controlled substances are classified into five groups , based on their____
Addictiveness
A solution with a lot of hydrogen ions present is ___
Acidic
What is the scientific name for the Tiger salamander?
Ambystoma tigrinum
A lack of iron in the diet can cause what disease?
Anemia
What document specify the minimum cleaning standards for cages, feeders, and water bottles for many laboratory animals?
Animal welfare regulations
What are the three groups of amphibians, based on the environment in which they live as adults?
Aquatic, semi-aquatic, terrestrial
What is not an inbred strain of mouse?
CD-1
What is flanking
Casting a calf to the ground
What order do pigeons belong to?
Columbiformes
What is the oldest inbred strain of mice
DBA
What is another species of hamster besides the Syrian hamster?
Djungarian hamster
How often do female mice go into estrus?
Every 4-5 days
What is not a common method of euthanasia for gerbils?
Intercardiac injection of potassium chloride
How does environmental enrichment benefit NHPs in the laboratory?
It encourages species-specific behaviors
Why is low light level beneficial to the fish and their tanks?
It limits the build-up of algae on the tank surface
Which anesthetic agent is commonly used with fish
MS-222
What is the scientific name for the Syrian hamster?
Mesocricetus auratus
A bird's wing tip contains the third and fourth ____ bones, which are necessary for flight
Metacarpal
What is the standard unit of length in the metric system?
Meter
Which two mating systems are commonly used with rats?
Monogamous, polygamous
What atom is present in all protein molecules?
Nitrogen
In a feed storage room, how should feed bags be stored?
On a platform or shelves, 6 inches from the wall
Where are the ferret's scent glands located?
On either side of the anus
What is not a sign of danger to someone handling a horse?
One hind leg cocked
What is Harem mating?
One male is housed with several females, and the group stays together after parturtion
What is it called when only unrelated animals are mated with each other?
Outbreeding
What order do finches belong to?
Passeriformes
What is a common barbiturate used in euthanasia solutions?
Pentobarbital
What is the recommended method to pick up a lizard?
Pin the front legs against the body and the back legs against the tail
What item should never be autoclaved?
Radioactive materials
What is the scientific name for the common laboratory rat?
Rattus norvegicus
What type of caging system requires that the water be changed frequently?
Static system
What is pinioning?
Surgical removal of the distal tip of the birds wing
As with cats, the USDA requires dogs to have which types of identification?
Tag and collar or tattoo
What part of their body do pigs normally use for defense?
Teeth
Who is ultimately responsible for the safety of an individual staff member of an animal research facility?
The individual him/herself
What is the relationship between a nutritional calorie and a kilocalorie?
There is 1 nutritional calorie per kilocalorie
Why do gerbils enjoy deep bedding?
They like to burrow into the bedding
How do steroids work to reduce inflammation?
They suppress the immune system
The nonfunctional pendants of skin sometimes found hanging from either side of the goats neck are called __
Wattles
What is the purpose of the Good laboratory practices regulations?
To validate and document the processes by which safety tests are conducted so that the processes can be reconstructed is needed
When breeding guinea pigs, it is important to watch for what condition in pregnant animals?
Toxemia
Fish should not be used for egg collection more then once per___
Week
What is the scientific name of the African clawed frog?
Xenopus laevis
Unlike rats and mice, guinea pig molars ___
continue to grow throughout their lives
Gavage is a process in which the drugs are ___
put directly into the esophagus or stomach by bulbed needle or stomach tube
Which amphibians are tongueless and must direct food into their mouths with their front legs?
African and Western clawed frogs
the gestation period in goats is ______ days
143-154
Rat pups are normally weaned at ___ days of age
20-21
On average, a rat consumes how much food per 100 grams body weight per day?
5 grams
What humidity level should an amphibian room be kept?
80%
Proper ventilation in animal rooms helps prevent the accumulation of waste gasses such as ___
Ammonia and carbon dioxide
Guinea pigs must have diet that is enriched with what vitamin?
C
What is the scientific name for the dog?
Canis familiaris
What is the behavior that is often seen in amphibians, especially as a result of overcrowding?
Cannibalism
What is the most common method to euthanize guinea pigs?
Carbon dioxide asphyxiation
What is the scientific name for the guinea pig?
Cavia porcellus
Which method of euthanasia should not be performed on large adult rats?
Cervical dislocation
When newly received animals are in poor health, what process should they undergo upon receipt?
Conditioning
How should a frog be picked up?
Cradle the frog in your hand with your fingers between and around the frogs legs
Which term describes the process that destroys the microorganisms or affects their growth on an object or a surface?
Disinfection
What identification method is usually NOT used on gerbils?
Ear tattoo
In sheep, goats, and cattle used for research, what is the method USUALLY used for euthanasia?
Injection of barbiturate overdose
pyrethrins are examples of what type of drug?
Insecticides
Which stock of rat is also known as the "hooded" rat?
Long-Evans
In male mice, the anogenital distance is____
Longer then female mice
What is sexual dimorphism?
Males and females are different in size, feathers, or color
What is the scientific name for the Mongolian gerbil?
Meriones unguiculatus
What is the most common plastic used for rodent caging and fish tanks?
Polysulfone
If a cat is extremely fearful, what is the course of action that would make the procedure more safe to perform?
Postpone the procedure until the cat is more calm
NaCI is sodium chloride. What is KCI?
Potassium chloride
What might be combined with a live diet when feeding many types of laboratory fish
Prepared feed
What term describes the process of reducing the number of microorganisms on a surface or object to an acceptable public health standard?
Sanitization
Why should frogs be handled with wet gloves?
So the mucous coat dosnt rub off
The golden hamster is also known as the ____ hamster
Syrian
What factor most affects the amount of dissolved oxygen in tank water?
Temperature of the water
Why isnt toe clipping acceptable for some amphibian species?
Their toes will grow back
Why is it recommended that technicians wear eye protection when handling a Bufo marinus?
They secrete toxins through their parotid gland