Name the innermost section of a flower.

A. Stamen
B. Petal
C. Sepal
D. Carpel
E. Ovule


Answer: D

Biology & Microbiology

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Nucleic acid blotting is widely used in recombinant DNA technology. In a Southern blot, one generally ________

A) hybridizes filter-bound DNA with a DNA probe B) ligates DNA with DNA ligase C) hybridizes filter-bound RNA with a DNA probe D) cleaves RNA with restriction endonucleases E) examines amino acid substitutions with radioactive probes

Biology & Microbiology

When the atoms involved in a covalent bond have the same electronegativity, what type of bond results?

A) an ionic bond B) a hydrogen bond C) a nonpolar covalent bond D) a polar covalent bond

Biology & Microbiology

mRNA is made in the ribosome.

A. True B. False

Biology & Microbiology

The repeating sequence of cells dividing, growing, and dividing again is called

A) homologous differentiation. B) the cell cycle. C) stem cell differentiation. D) fission.

Biology & Microbiology