A recombinant phenotype is ____
a. a different combination of the traits seen in either parent
b. identical to the traits seen in both parents
c. an expression of dominant traits only
d. an expression of recessive traits only
e. the result of crossing two homozygous dominant individuals
ANSWER: a
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Fifteen high school students visited a local farm in central Wisconsin for a weekend where they enjoyed petting farm animals, riding horses, and campfire meals
With sanitation in mind, only one individual remembered to wash her hands with water pumped from a well after petting the animals before dinner. After two weeks of the girl passing out at random occasions, she was rushed into the emergency room where doctors determined she was severely dehydrated. Explain how it took direct observation of a fecal sample to solve this potential life-threatening disease and how this disease was treated in the otherwise healthy girl. Also mention any necessary precautions the individual should have taken after being diagnosed with the disease. What will be an ideal response?
Which class of molecule is the most diverse in terms of structure and roles played in cells?
a. proteins b. lipids c. nucleic acids d. carbohydrates e. amino acids
At the cellular level, the development of an animal from a fertilized egg involves
a. cell division by meiosis. b. cell division by mitosis. c. cell division by differentiation d. cell division by morphogenesis. e. cell division by cloning.
In eukaryotes, DNA is transcribed in the _____
a. mitochondria b. cytoplasm c. ribosomes d. nucleus e. endoplasmic reticulum