Which of the following tags should be used to retrieve information from a database about a dna segment of a human gene that codes for a specific protein?
a. nucleotide sequence, human, hemoglobin
b. human, mouse, fruit fly
c. sugar monomer, amino acid, fatty acid
d. mouse, chromosome ii, centrosome

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Monomers are the building blocks of larger molecules, called polymers. for example, proteins are composed of chains of amino acids that are linked together. cellulose is a polymer that makes up plant cell walls. cellulose is made from a chain of c6h10o5 molecules. which monomers are most likely used to produce cellulose? why?