Unit Four Exam: Ch 15-17 Flashcards
What is the OPPOSITE meaning of the prefix “hyper”?
Less than
What is the meaning of the prefix “endo”?
Inside
What is the OPPOSITE of the prefix “micro”?
Large
What is the meaning of the root “cyto”?
Cell
What is the basic unit of weight in the metric system?
Gram
How many centimeters are in a meter?
100
How many millimeters are in a cubic centimeter?
1
One milligram is equal to how many pounds?
2.2
What is 32F in the Celsius scale?
0 C
What is normal human body temperature in the Celsius scale?
37 C
What is a molecule?
Two or more atoms bonded together
What is the meaning of “CO2”?
One carbon atom bound to two oxygen atoms
What does the pH of a solution refer to?
Degree of acidity
A solution with a pH of 8 is slightly:
Basic
A solution with a pH of 2 is very:
Acidic
If a bottle of cleaner has a pH of 10, you should:
Use heavy gloves and eye/face protection when handling it
You are preparing a 1:4 dilution of substance A. The final volume is 400 ml. What is the volume of substance A you need?
100 ml
You are preparing a 1:3 dilution of substance B. You will use 10 ml of substance B. What is the final volume?
30 ml
The document that clearly defines the use of animals in the study is called the:
Animal use protocol
When can experimental work with animals begin?
When the animal use protocol has been approved by the IACUC
In a research experiment, which group of animals receives the experimental treatment?
The experimental animals
In a research study, what is the control group?
The group of animals that does not receive the experimental treatment
Which of the following is NOT a factor that could have detrimental effects on a study?
A- errors in weighing an animal
B- showing favoritism toward certain animals
C- mixing up animal numbers in the records
D- recording animal weights correctly every day
D- recording animal weights correctly every day
What is an animal model?
An animal that develops a disease or condition that affects humans
What is applied research?
Research that attempts to answer practical problems about diseases
What is the basic unit of inheritance called?
Gene
What are the only types of cells in which the chromosomes are present but not paired?
Ova and sperm cells
What is a gene made up of?
DNA
When the gene is successfully used by the cell to make proteins and structures, the gene is said to be:
Expressed
What is the animal’s observable characteristics including its physical appearance and internal physiology?
Phenotype
What is a transgenic animal?
An animal that has foreign DNA inserted into its own set of DNA
What is a knockout animal?
An animal that ha had a gene “turned off” by scientists
In a pair of genes, the gene that is less easily expressed is said to be:
Recessive
Why would a researcher want to use inbreeding?
To create a group of animal that is very similar genetically
What type of animal contains altered DNA designed to turn on a specific gene?
A knock in animal
Why would a researcher want to use harem mating?
To produce a large number of offspring in a short amount of time
When does the female animal become receptive to mating?
During her estrus cycle
What is the gestation period?
The time that the female is pregnant
Which of the following is a condition that technicians may commonly see in breeding rodent populations? A- dystocia B- blindness C- diabetes D- alopecia
A- dystocia
Under what breeding scheme are pregnant females removed from the male’s cage with new, non-pregnant females being added to maximize production with the fewest number of overall breeders?
Harem mating
Transgenic animal’s have: A- altered genes B- recessive genes C- congenital defects D- a tendency toward mutation
A- altered genes
What is the term used to describe the type of mouse that has a genetic mutation that prevents it from developing T lymphocytes?
A nude mice
A spontaneous genetic mutation is:
Unplanned and occurs without human intervention
What types of animals are highly susceptible to infections and need to be maintained under barrier conditions?
Immunodeficient animals
Sorry are produced in which organ?
The testes
Where does fertilization occur in amphibians?
Outside the female’s reproductive tract
What is the release of eggs from an ovary called?
Ovulation
What gland of male rodents produces a mucous plug that remains in the female rodent’s vagina?
Coagulating gland
What is the breeding scheme called in which only unrelated or distantly related animals of the same stock are mated?
Outbreeding
An inbred strain is established after how many brother-sister makings of mice?
20
