__________ secrete products such as sweat or
digestive enzymes through ducts.
Answer: Exocrine glands
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Most cases of red-green colorblindness are inherited as an X-linked recessive characteristic. Which of the following are possible if a woman, who is a carrier for colorblindness, has offspring with a male who is colorblind?
a. All their sons will have normal color vision. b. All their sons will be colorblind c. All their daughters will be colorblind. d. All their daughters will have normal vision. e. All of the above are possible.
Bioinformatics provides database information to align proteins from novel sequences with known proteins. If a new amino acid sequence does not match an existing sequence ________.
A. it is called an paralogue; the DNA that codes the ORF does not match any other organism in the database and the function is not known B. it is called an orthologue; the DNA that codes the ORF does not match any other organism in the database and the function is not known C. it is either a conserved hypothetical protein, i.e., the DNA matches genes in the database but they have no known function, or it is a protein of unknown function; the genes are unique to that organism D. it is either a protein of unknown function, i.e., the DNA matches genes in the database but they have no known function, or it is a conserved hypothetical protein; the genes are unique to that organism
Which term describes new ecological opportunities that were not exploited by an ancestral organism?
a. hybrid zones b. fusion zones c. stability zones d. adaptive zones e. reinforcement zones
Which of the following describes the sites of leaf attachment in a stem?
A) joints B) nodes C) internodes D) cotyledons