EcoRI is an example of a ________.
Fill in the blank(s) with the appropriate word(s).
restriction enzyme
EcoRI is an example of a restriction enzyme.
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In early human embryos, the gene HoxB7 is involved in patterning the central nervous system. In later embryos, HoxB7 plays a critical role in growth and development of the kidney
These different functions of the same gene at different times and places are an example of ________. A) homology B) taphonomy C) pleiotropy D) unconformity E) constraint
In animals, the extracellular matrix plays important roles in each of the following processes except
A) cell division. B) cell motility. C) DNA replication. D) cell differentiation. E) cell adhesion.
In eukaryotes, genetic material is packaged tightly in the nucleus. Which one of the following most accurately lists the components in order of increasing size (i.e., from smallest to largest)?
A. nucleotide, DNA duplex, chromatid, nucleosome, chromosome B. chromosome, nucleosome, chromatid, DNA duplex, nucleotide C. chromosome, chromatid, nucleosome, DNA duplex, nucleotide D. nucleotide, DNA duplex, nucleosome, chromatid, chromosome E. nucleotide, nucleosome, DNA duplex, chromatid, chromosome
Of the nutrients needed for plant growth, active uptake of ________ regulates turgor pressure within cells of leaves.
A. carbon dioxide B. nitrogen C. oxygen D. ions