Life Science 4th Quarter Review 1 - 10: Question Preview (ID: 9278)

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Genetically similar organisms are produced by:
a) inbreeding b) evolution c) photosynthesis d)
Darwin studied finches on the Galapagos Island even though the birds were from the same species. Why were the birds' beaks different on each island?
a) mating behaviors b) size of the islands c) adaptations due to the environment d)
Characteristics that are controlled by genes like hair color are:
a) inherited b) caused by accidents c) produced by diet d)
When two genetically different but related organisms are crossed, this is called:
a) magic b) hybridization c) inbreeding d)
A cell in the human body has how many chromosomes?
a) 14 b) 23 c) 46 d)
The genetic makeup of an organism is called:
a) genotype b) allele c) phenotype d)
Eye color is a visible characteristic of an animal. This is called:
a) genotype b) allele c) phenotype d)
Scientists measure the age of fossils by which technique?
a) natural selection b) guessing c) radiocarbon dating d)
This is the process of change over time:
a) evolution b) genetics c) succession d)
What does a genotype symbol for a recessive trait look like?
a) lower case letters b) capital letters c) numbers d)
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