How are histone mRNAs degraded?
What will be an ideal response?
Ans: Histone mRNAs terminate in a stem-loop structure. A polymerase adds a short poly(U) tail to the mRNA, which is then degraded by one of the two standard (5? to 3? or 3? to 5?) degradation pathways)
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The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.TimeOxygen (ppm)pH2 a.m.4.57.74 a.m.2.87.26 a.m.2.26.88 a.m.2.56.810 a.m.3.97.2Noon6.57.72 p.m.10.08.34 p.m.12.18.86 p.m.13.19.28 p.m.13.09.210 p.m.12.08.8Midnight10.88.3In such a pond that contains algae and fish, what is happening to the oxygen?
A. Oxygen is only consumed by the fish B. Oxygen is only consumed by both the algae and the fish C. Oxygen is only produced by the algae D. Oxygen is produced by the algae, and consumed by the algae and the fish
In genetics, map units express the distance between:a
chromosomes during metaphase. b. two loci on a chromosome. c. alleles. d. polar bodies. e. homologous chromosomes.
Explain what is different about the Ziehl-Neelson and Kinyoun methods of acid fast staining.
What will be an ideal response?
What kind of connective tissue has an extracellular liquid matrix called plasma?
A) cartilage B) loose connective tissue C) bone D) blood