The chains of an antibody molecule are bonded to one another by

A. disulfide bonds.
B. hydrogen bonds.
C. ionic bonds.
D. oxygen bonds.


A

Biology & Microbiology

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The majority of prokaryotic DNA is arrayed in:

A. multiple circular chromosomes. B. a single circular chromosome. C. a single linear chromosome. D. multiple linear chromosomes.

Biology & Microbiology

The germ layers are formed during which developmental stage?

a. cleavage b. meiosis c. gastrulation d. zygote formation e. blastula formation

Biology & Microbiology

How do mutations affect genetic diversity in a population?

What will be an ideal response?

Biology & Microbiology

Enzymes that are continuously produced are said to have a(n) ________ expression

A) positive B) repressible C) inducible D) negative E) constitutive

Biology & Microbiology