Intramembranous ossification step 1

What will be an ideal response?


Ossification centers are formed when mesenchymal cells cluster and become osteoblasts.

Biology & Microbiology

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You want to engineer a eukaryotic gene into bacterial colony and have it expressed. What must be included in addition to the coding exons of the gene?

A) the introns B) eukaryotic polymerases C) a bacterial promoter sequence D) eukaryotic ribosomal subunits E) eukaryotic tRNAs

Biology & Microbiology

The equation A-PO4 + B ? A + B-PO4 would be catalyzed by which of the following classes of enzymes?

A) transferases B) oxidoreductases C) hydrolases D) ligases E) isomerases

Biology & Microbiology

A food spoilage process called ________ results in the release of foul-smelling amine compounds.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

In a frog embryo, gastrulation

A. produces a blastocoel displaced into the animal hemisphere. B. occurs along the primitive streak in the animal hemisphere. C. is impossible because of the large amount of yolk in the egg. D. proceeds by invagination and involution as cells roll over the dorsal lip of the blastopore. E. occurs within the inner cell mass that is embedded in the large amount of yolk.

Biology & Microbiology