When are histones phosphorylated?

What will be an ideal response?


Ans: Histones are known to be phosphorylated at three different events. First, H1 is phosphorylated during mitosis, perhaps as a signal for chromatin condensation. Also, histones are phosphorylated during transcription (associated with chromatin remodeling) and during DNA repair.

Biology & Microbiology

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The clams, oysters, and mussels belong to this group because of the nature of their shells. 

A. bivalves B. slugs C. chitons D. radulas

Biology & Microbiology

Which Ecdysozoan phylum contains animals called roundworms that are so plentiful in soil and other places that they may be the most abundant animals on Earth?

a. Nematoda b. Nemertea c. Annelida d. Arthropoda

Biology & Microbiology

birth of baby through an incision (cut) in the abdomen

What will be an ideal response?

Biology & Microbiology

Imagine you conducted a study similar to the one by Thompson and Cunningham (2002) in which you tested the mosaic theory of coevolution in the Greya moth/woodland star flower system

In your study, you obtained the results that are displayed in the map below. NW of the line, plants abort flow-ers with moth larvae; SE of the line, plants tolerate the moth larvae. A white location marker indicates sites where Greya moths are the only pollinators. A black population marker indicates cases where additional pol-linators are present. What conclusions would you draw? a. The different trajectories that coevolution has taken in different geographic regions supports the mosaic theory of coevolution. b. Only the populations SE of the line form a coevolutionary mosaic. c. Greya moths have the same effect on woodland star flowers throughout the range. d. Factors other than coevolution with Greya likely have shaped the evolution plant defenses in woodland star flowers.

Biology & Microbiology