The breast cancer gene BRCA1 has a very similar sequence in humans, mice, and gorillas, due to its origination in a common ancestor. The BRCA1 genes in these species are examples of ________.

A. polyploidy
B. synteny
C. paralogs
D. orthologs


Answer: D

Biology & Microbiology

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Even though plant cell walls in the root system are rigid they are permeable to ________. a. water and sunlight b. sunlight and potassium c. They are not permeable to anything

d. water and ions e. sunlight and oxygen

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Some species of racerunner lizards are all female and reproduce asexually. Which strategy would they use for reproduction?

1.binary fission 2.hermaphroditism 3.parthenogenesis 4.budding

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Asexual spores produced by many fungi at the tips of hyphae are called

a. conidia b. zygospores c. ascospores d. basidiospores e. smut

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Which of the following best describes the overall scheme of typical plant development?

a. Growing tips and zones are present throughout a plant's life, and final plant form is not influenced by the environment. b. Growing tips and zones are present throughout a plant's life, and plant bodies do not have a fixed final size. c. Plant bodies do not have a fixed final size, and final plant form is not influenced by the environment. d. Plant bodies have a fixed fi

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