The molecule used by cells to store genetic information= ______________
Fill in the blank(s) with the appropriate word(s).
Ans: DNA
You might also like to view...
Most eukaryotic cells contain mitochondria, but a few single-celled eukaryotic organisms found in oxygen-free environments do not
Which of the following observations led biologists to reject the hypothesis that these mitochondria-free eukaryotes evolved BEFORE the endosymbiotic event that established mitochondria in other eukaryotes? A. All eukaryotes exhibit some sort of energy utilization. B. Some eukaryotes don't have mitochondria, they have chloroplasts instead. C. The nuclear genome of these mitochondria -free eukaryotes contains relics of mitochondrial genes. D. All eukaryotes have remnant chloroplast genes.
You perform comparative genomic hybridization. Instead of using cancer cells, you accidentally make both red and green DNA molecules from normal tissue. What will your ratio of green fluorescence to red fluorescence be?
A. 0 B. 1 C. 2 D. There will be no signal.
Answer the following statements true (T) or false (F)
1. CSF specimens should be refrigerated en route to the Clinical Microbiology Laboratory. 2. There is no need to refrigerate urine specimens for culture if they are clean-catch midstream specimens. 3. Many clinical specimens labeled “sputum” are actually saliva specimens. 4. The Clinical Microbiology Laboratory is part of the Clinical Pathology Division of the Pathology Department. 5. ?-Lactamase testing is always performed on isolates of Neisseria gonorrhoeae and Haemophilus influenzae.
All of the following involve active transport across membranes except
A) the movement of mineral nutrients from the apoplast to the symplast. B) the movement of sugar from mesophyll cells into sieve-tube elements. C) the movement of sugar from one sieve-tube element to the next. D) the movement of K+ across guard cell membranes during stomatal opening. E) the movement of mineral nutrients into cells of the root cortex.