The physical location of a particular gene on a chromosome is called:a
an allele.
b. a locus.
c. a trait.
d. a chromatid.
e. None of these.
B
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Bacteria found in the mouth in the first years of life are well-adapted to biofilm formation
Indicate whether the statement is true or false.
The common ancestor of orangutans, gorillas, chimpanzees, and humans existed
approximately _____ million years ago.
a. 16 b. 13 c. 18 d. 7
The ____ joints, found in the vertebrae and some rib bones,have fibrous connective tissue covering the ends of the
bones involved and are somewhat moveable.
a. synovial b. cartilaginous c. fibrous d. agonist e. antagonistic
The E. coli lac operon encodes three genes. These genes
a. cleave lactose into glucose and galactose, produce transacetylase, and actively transport lactose into the cell. b. encode for an enzyme that cleaves glucose, a transport protein for active transport, and a transacetylase enzyme for solubilizing lactose in the cytosol. c. encode for an enzyme that cleaves lactose, a transport protein for active transport of lactose, and a transacetylase enzyme whose function is still unknown. d. catalyze the synthesis of lactose from glucose and galactose, produce transacetylase, and actively export lactose from the cell. e. directly interact with the lac repressor and initiate their own transcription.