Which of the following is mismatched?
anaphase--sister chromatids are pulled to separate ends of the cell
metaphase -- chromosomes line up at the center of the cell
telophase -- nuclear envelope is breaking down; chromosomes are condensing
interphase -- cell is going about its daily business, at the end DNA is duplicated and starts condensing
The Correct Answer is C
A. anaphase – sister chromatids are pulled to separate ends of the cell: During anaphase, sister chromatids separate and move to opposite poles.
B. metaphase – chromosomes line up at the center of the cell: In metaphase, chromosomes align at the metaphase plate.
C. telophase – nuclear envelope is breaking down; chromosomes are condensing: In telophase, the nuclear envelope is reforming, and chromosomes are de-condensing into chromatin. The description given fits prophase, not telophase.
D. interphase – cell is going about its daily business, at the end DNA is duplicated and starts condensing: During interphase, the cell grows and replicates DNA in preparation for mitosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. quaternary: Quaternary structure involves the interaction of multiple polypeptide chains, not folding of a single chain.
B. primary: Primary structure is the linear sequence of amino acids.
C. secondary: Secondary structure includes alpha helices and beta-pleated sheets, but not their 3D folding.
D. tertiary: Tertiary structure is the 3D shape formed by the folding of secondary structures, stabilized by hydrogen, ionic, and disulfide bonds.
Correct Answer is C
Explanation
A. codon; a single amino acid in the protein to be made: A codon is a sequence of three RNA nucleotides, not DNA. Codons are found in mRNA during translation.
B. triplet; the entire protein to be made: A triplet codes for one amino acid, not the entire protein.
C. triplet; a single amino acid in the protein to be made: In DNA, a triplet is a group of three nucleotide bases that codes for a single amino acid during protein synthesis.
D. codon; gene: A codon (in mRNA) corresponds to one amino acid, not an entire gene.
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