Which of the following has X-linked recessive inheritance?
a. Duchenne muscular dystrophy
b. phenylketonuria
c. achondroplasia
d. sickle-cell anemia
e. cystic fibrosis
A
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A bacterium that either partially or fully catabolizes an acyl-homoserine lactone will likely disrupt
A) attenuation. B) chemotaxis. C) endospore formation. D) quorum sensing.
Recombination between sister chromatids produces new combinations of alleles that may be beneficial to the species
Indicate whether the statement is true or false
In the section "Investigating Life: Birds Do, Bees Do It", bumblebees pollinated M. lewisii, whereas hummingbirds preferred the red-flowered M. cardinalis. If a hummingbird carries M. cardinalis pollen to M. lewisii, the resulting hybrid offspring are viable. M. lewisii and M. cardinalis are different species because of
A. post-zygotic barriers to reproduction. B. pre-zygotic barriers to reproduction. C. punctuated equilibrium. D. gradualism. E. asexual reproduction.
Bacterial cell wall is made of:
A. cellulose B. Phospholipid C. Protein D. Murein