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ISAT Practice #21: Glencoe Science: Life Science
Test Description: ISAT Practice #21: Glencoe Science: Life Science
Instructions: Answer all questions to get your test result.
1) Treating genetic disorders by inserting normal alleles into cells is called ___.
A
gene therapy
B
polygenic inheritance
C
Medelian genetics
D
pedigree analysis
2) Recombinant DNA is made by ___.
A
inserting a segment of DNA from one organism into a chromosome of another organism
B
crossing two organisms that are homozygous for a specific trait
C
causing random mutations to occur during the copying of DNA
D
exposing DNA to X rays or radioactive substances
3) A chromosome disorder occurs when ___.
A
one nitrogen base has been substituted for another
B
a new organism receives more or fewer chromosomes than normal
C
DNA is not copied correctly during mitosis
D
meiosis fails to occur
4) A group of organisms that share similar charcteristics and can reproduce among themselves to produce fertile offspring is called a ___.
A
generation
B
hominid
C
species
D
population
5) Which of the following is a principle of natural selection?
A
Helpful variations allow individuals to survive and reproduce better than members who lack these variations.
B
Variations are acquired during an individual's lifetime and so are not passed to offspring.
C
Most organisms are infertile or produce nonvialble offspring.
D
Members of a species are genetically identical.
6) Humans, monkeys, and apes belong to a group of animals known as ___.
A
primates
B
neanderthals
C
australopithecenes
D
hominids
7) Which of the following is NOT a characteristic of primates?
A
binocular vision
B
flexible shoulders
C
opposable thumbs
D
walking upright
8) The scientific name for modern humans is ___.
A
Australopithecus
B
Homo habilis
C
Homo sapiens sapiens
D
Homo erectus
9) Which of the following is based on teh idea that younger rock layers are deposited on top of older rock layers?
A
relative dating
B
gradualism
C
radiometric dating
D
natural selection
10) What function does a thick, gelatinlike capsule serve in a bacterium?
A
It encloses the bacterium's genetic material.
B
It allows the bacterium to exchange genetic material with other bacteria.
C
It enables a bacterium to exist for many years until growth is favorable.
D
It protects the bacterium from other cells that try to destroy it.
*select an answer for all questions
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