The only gene successfully targeted for breast cancer prevention is the
a. estrogen promoter gene.
b. estrogen receptor gene.
c. uterine promoter gene.
d. uterine receptor gene.
e. breast promoter gene.
B
You might also like to view...
Could an isolated melanin granule move along an actin microfilament?
A. Yes, melanin granules have motor proteins. B. Yes, motor proteins all use ATP to cause a conformation change. C. No, motor proteins are specific for the type of filament they bind. D. Answers a and b are both correct.
The comet exploring Rosetta spacecraft, Philae, reports back the presence of single-celled organisms that resemble bacteria found on the comet C-G. A module from the spacecraft containing a sample of the organism is rocketed back to earth
Amazingly, the comet organism can be grown in the lab. It is determined that DNA and RNA and proteins arepresent in the comet organism, but that four of the nitrogenous bases are different from terrestrial nucleotides. The comet organism's nitrogenous bases are named A, B, C, and D. Comet organism proteinswere found to contain only the 20 amino acids regularly found as components of terrestrial proteins. You are askedto decipher the genetic code of this comet organism. You synthesize three polyribonucleotides consisting of various combinations of A, B, and Cnitrogenous bases,and determine the amino acid sequence of any proteins synthesizedduring comet-organism cell-free in vitro translation. The results are shown in the table below: Polynucleotide sequence Amino acid sequence of polypeptide(s) 5' BCBCBCBCBCBC….. 3' …..GLY-ILE-GLY-ILE-GLY-ILE….. 5' BBCBBCBBCBBC….. 3 ' …..GLY-GLY-GLY-GLY-GLY….. …..ASN- ASN- ASN- ASN- ASN….. …..TYR-TYR-TYR-TYR-TYR….. 5'ABBCABBCABBCABBC….. 3' …..LYS-THR-VAL-TYR-LYS-THR-VAL-TYR….. If the genetic code of the comet organism is a triplet, nonoverlapping code with no commas, what is the codon for asparagine? A. BBC B. BCB C. CBB D. BBB
What are bacteriophages?
a. a hybrid between a virus and a bacterium b. viruses that set in as secondary infections after bacteria c. a classification of viruses that are infected by bacteria d. a classification of viruses that only infect bacteria
For most metazoans, what is the name of the outermost tissue layer during development?
a. epiderm b. ectoderm c. endoderm d. mesoderm