What did Mendel observe when he crossed two true breeding plants with contrasting traits?
What will be an ideal response?
He observed that all plants in the F1 generation exhibited only one of the two traits from the parental generation.
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The most common food allergens are
a. tomatoes, peppers, and eggs. b. eggs, milk, and strawberries. c. oranges, pineapples, and shellfish. d. shellfish, tomatoes, and cheese. e. shellfish, eggs, and wheat.
The human T-lymphotropic virus 1 causes
A) hairy cell leukemia. B) adult acute T-cell lymphocytic leukemia. C) Hodgkin's lymphoma. D) hepatic cancer. E) Burkitt's lymphoma.
The arrival of ________ in the duodenum triggers the release of bile by the gallbladder.
A. vitamins B. fats C. minerals D. carbohydrates E. protein
A strain with a nonfunctional ________ protein would generate many mutations because the error-prone SOS system would never be repressed
a. RecA b. LexA c. HisC d. DNA polymerase IV