____ is composed of DNA and protein.
a. A mitochondrion
b. A flagellum
c. A centriole
d. Chromatin
e. A ribosome
d. Chromatin
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A gene discovery technique that looks at regions of the genome where individuals have the same alleles much more often than expected by chance, because their ancestors were blood relatives, is called
A) homozygosity mapping. B) heterozygosity mapping. C) the defective sibling pair approach. D) empiric risk.
Signaling molecules act locally or regionally to ________
a. all of the choices b. influence gene expression only c. regulate growth, development, and reproduction only d. adjust metabolism only
What is a RefSeq?
A) A RefSeq is a single, complete, annotated version of a species' genomic DNA sequence that can be accessed for bioinformatic studies. B) A RefSeq is a constantly updated collection of DNA sequences from all species that give the latest information for bioinformatic studies. C) A RefSeq is a program to compare genome sequences. D) A RefSeq is a program that identifies open reading frames.
Streptococci are frequently classified by
A) Lancefield antigen designations. B) the type of enzymes the bacteria produce. C) their staining properties. D) their ability to produce a capsule. E) the diseases they produce.