A restriction enzyme that uses a six (6 ) base recognition sequence will cut DNA, on average, every ________ bases, if all four nucleotides are present in equal proportions
A) 4096 B) 256 C) 5000 D) 500 E) 1296
Answer: A
You might also like to view...
Human diploid cells have ____ chromosomes while human gametes have ____ chromosomes
a. 46; 23 b. 23; 46 c. 96; 48 d. 48; 96
e. 46; 92A role of the lymphatic system is to ________
A) transport histamine B) produce hormones related to fighting infections C) produce white blood cells D) return tissue fluid to the circulatory system
In the laboratory, fruit flies (Drosophila) were artificially selected for the number of bristles on their bodies. One population (R) was selected for low numbers of bristles, a second population (S) for high numbers of bristles.
After 35 generations (about 1 year's time), the two populations R and S were studied. Researchers found
A. a huge increase in S, a huge decrease in R, with no overlap whatsoever. B. no change was seen; it's much too soon. C. a vast, overlapping range of bristle numbers was seen. D. a slight increase in bristles in S, a slight decrease in R, with a little overlap in the middle ranges. E. some slight increase of bristle numbers was already evident.
All the chemical reactions that occur in a cell are called
What will be an ideal response?