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
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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
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
Asexual spores produced by many fungi at the tips of hyphae are called
a. conidia b. zygospores c. ascospores d. basidiospores e. smut
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