If cells from a wing are transplanted to the leg prior to their determination, into what will they likely develop?
A. A mixture of wing and leg cells
B. Undifferentiated cells
C. Wing cells
D. Cannot be determined
E. Leg cells
Answer: E
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Alanine and lysine are both amino acids. Not eating enough lysine can lead to protein deficiency, whereas not eating enough alanine does not lead to protein deficiency. Why is this the case?
A. Alanine can be synthesized by cellular biochemical pathways, whereas lysine cannot. B. Alanine can be easily replaced by other amino acids in protein synthesis, whereas lysine cannot. C. Lysine is needed in much larger quantities for protein synthesis than alanine. D. The body has a more difficult time absorbing lysine than alanine, so more must be consumed to avoid protein deficiencies. E. All of the answer options are correct.
Choose the organelle in column 2 that best matches the activity in column 1.
A) There is no appropriate match. B) Mitochondria C) peroxisomes D) mitochondria E) there is no appropriate match F) lysosome G) smooth endoplasmic reticulum 1) test for catalase activity 2) test for the TCA cycle enzymes 3) test for the presence of cytochromes 4) look for fractions that are green 5) hydroxylation of compounds including phenobarbital 6) presence of acid hydrolases 7) ribulose bisphosphatase activity is present
An informed statement that can be tested in a manner suited to the processes of science is known as a
________ is defined as the percentage of the original population that survives to a given age.
Fill in the blank(s) with the appropriate word(s).