Almost all cases of cystic fibrosis, a(n) ____ genetic disorder, are the result of mating between two unaffected parents
a. mitochondrial
b. autosomal dominant
c. autosomal recessive
d. X-linked dominant
e. X-linked recessive
c
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What is the correct ordering in the hierarchal levels of the organization of life, from the least inclusive to the most
inclusive?
a. tissues, cells, population, organisms, and organs b. molecules, cells, organs, tissues, and organisms c. ecosystems, populations, tissues, cells, and organs d. cells, tissues, organs, communities, and populations e. cells, tissues, organs, organisms, and ecosystems
Which is not correct about the way prokaryotes divide?
A. The chromosome is a single circular molecule of DNA. B. The replication of DNA occurs in one direction around the circle. C. When the cell reaches an appropriate size, the cell divides into two equal halves. D. They divide by binary fission. E. They use the same DNA bases as in eukaryotes.
When a concept has been tested repeatedly and appears to be a uniform or constant fact of nature, it is called
A. empirical evidence. B. a hypothesis. C. a deduction. D. a law.
The development of normal maternal behavior in female mice depends on interactions between the female and her young and the presence of a gene called fosB. In mice with functional fosB genes, a sequence of events occurs after babies are born.Arrange the events in their normal sequence following the birth of baby mice for a wild-type female.____ The gene fosB is activated, producing protein that activates other genes.____ Auditory, olfactory, and tactile signals about the young are sent to the hypothalamus.____ Female crouches over young and retrieves them if they leave the nest.____ Female inspects newborns.____ Neural circuitry within the hypothalamus is modified, facilitating maternal behavior.
What will be an ideal response?