A healthy young couple are both carriers of cystic fibrosis; the chance that each of their future children will inherit this serious illness is
a. 50%.
b. 0%, because cystic fibrosis is not an inherited illness.
c. 25%.
d. More information is needed about the couple's parents and grandparents to determine probability.
e. 100%, because both parents are identified as carriers of cystic fibrosis
Ans: c. 25%.
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After his voyage on the HMS Beagle, Charles Darwin produced a monograph based on what animal?
a. Galapagos Tortoises b. Barnacles c. Mussels d. Finches
In eukaryotes most of the reactions of cellular respiration except glycolysis occur in the
1.cytosol. 2.nucleus. 3.mitochondria. 4.endoplasmic reticulum. 5.golgi.
The significance of totipotency is that:a
genes are not regularly lost during development. b. most organisms can be easily cloned. c. differentiation leads to the loss of certain genes in each cell. d. somatic cells are incapable of differentiation. e. unexpressed genes are lost during development.
The symptoms of tetanus are due to
A) endospore formation. B) systemic infection. C) sustained relaxation of muscles. D) tetanospasmin. E) inflammation.