The first cloned mammal, Dolly:a

was stillborn.
b. developed arthritis and a virus-induced lung cancer at a relatively young age.
c. lived a short period of time before suffering advanced aging effects.
d. lived to a normal age for sheep.
e. lived longer than normal sheep.


b

Biology & Microbiology

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The aminoglycosides and tetracycline specifically target the ________ interfering with ________.

A. cell membrane enzymes; transpeptidation step of peptidoglycan synthesis B. tRNAs; protein synthesis C. topoisomerases; DNA replication D. 30s ribosomal subunit; protein synthesis

Biology & Microbiology

Researchers have found that schizophrenia may be caused by multiple genes, each contributing equally to the behavioral phenotype. This is an example of _____

a. a polygenic additive model b. epistasis c. single gene, dominant trait d. single gene, recessive trait e. genome wide association

Biology & Microbiology

The mutation that causes the lighter skin color of all people of European descent was the result of a ____ in the gene

for a melanin transport protein.

a. base-pair substitution b. insertion c. deletion d. whole chromosome duplication e. multiple gene mutations involving several mechanisms

Biology & Microbiology

Gas exchange and stomata When water is in short supply, plants _____ their stomata which _____ gas exchange.

a) close, decreases b) open, decreases c) close, increases d) open, increases

Biology & Microbiology