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sperm; half contain an X chromosome; half contain a Y chromosome
The trp operon is called a(n)_____________________________ operon which is usually _________ until
the levels of tryptophan inside the cell are __________________
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repressible, on, high
When one atom loses an electron to another atom, it results in the formation of
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cations and anions that can form ionic bonds.
Amphipathic molecules
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possess both hydrophilic and hydrophobic properties.
The route that most accurately describes secretory protein movement through the
endomembrane system would be
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rough endoplasmic reticulum→vesicles→ Golgi apparatus→vesicles
→plasma membrane.
The ATP made during glycolysis is generated by
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substrate-level phosphorylation.
Prokaryotes, such as bacterial cells, differ from eukaryotes in that eukaryotes
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possess membrane-bound organelles.
Homologous chromosomes synapse and crossing over occurs.
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The statement is true for meiosis I only
Proteins are largely responsible for the traits of living organisms, while ________ provides
the blueprint for the organization, development, and function of living things.
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DNA
The process by which diploid cells are produced from diploid cells is called
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mitosis.
____________________ showed that _______________ is the transforming component that changed
the non-pathogenic R bacteria into pathogenic S bacteria.
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Avery, McCarty, Macleod, DNA
The major way that meiosis II differs from mitosis is that
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in meiosis II, the daughter cells are haploid.
If orange juice has a pH of 4, then it can be described as
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an acidic solution
In mitosis, if there are 40 chromatids in a cell at metaphase, how many chromosomes
are there in each daughter cell following cytokinesis?
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20
This nitrogenous base is found in RNA but not DNA.
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