Once a chromosomal position for a putative gene associated with Parkinson disease is verified, which of the following is a next step?
A) developing a FISH screening test to identify pre-Parkinson patients
B) determining whether this locus is mutated in all Parkinson patients
C) using a genome-wide linkage SNP panel to identify more minor genes
D) ascertaining all living and at-risk individuals who are family members of the affected test subjects
E) fine mapping of the linkage region to identify particular variants for influencing risk
E
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Wings of birds and butterflies have similar functions, but different evolutionary origins. They are:
A. physiological structures. B. homologous structures. C. analogous structures. D. phylogenetic structures.
An important functional role of the endocrine system is to
a. provide mechanisms for rapid responses to changes in the body. b. allow for mechanisms to control gene action. c. inhibit nervous system action on muscles and glands. d. maintain a constant, yet dynamic internal fluid environment. e. fight infection.
Imagine that the genetic code were read in a non-overlapping fashion, using only two nucleotides to specify an amino acid (i.e., the sequence above would be read: AU-GA-UG and so on)
Which of the following polypeptides would be obtained by translating the sequence above? Answer the questions below based on this RNA sequences: 5'-AUGAUGAUGAUG-3' This RNA transcript was generated using a synthetic DNA template. The letters B, D, E, F, G, and H have been selected to represent different amino acids. Assume that each codon is a different amino acid. A) B-B-B-B-B-B. B) B-D-B-D-B-D. C) B-B-B-D-D-D. D) B-D-E-F-G-H. E) B-D-E-B-D-E.
All ________ have two very different types of nuclei within their cells, small micronuclei and larger macronuclei.
A. dinoflagellates B. sporozoans C. ciliates D. oomycetes E. protists