Multiple ChoiceA collection of DNA and associated proteins in a cell defines the term:2785views31rank
Multiple ChoiceChoose the option that correctly lists the following genetic material in a dividing cell from smallest to largest.2346views36rank
Multiple ChoiceThe complex of DNA and protein that makes up a eukaryotic chromosome is properly called __________. 1345views
Multiple ChoiceThe region of a chromosome in which the two double strands of replicated DNA are held together is called __________. 991views
Textbook QuestionWhat is chromatin? a. the histone-containing protein core of the nucleosome b. the 30-nm fiber c. the complex of DNA and proteins found in the nucleus d. the histone and non-histone proteins in eukaryotic nuclei1085views
Textbook QuestionWhat is chromatin? a. the histone-containing protein core of the nucleosome b. the 30-nm fiber c. the complex of DNA and proteins found in the nucleus d. the histone and non-histone proteins in eukaryotic nuclei675views
Textbook QuestionAdd labels to the figure that follows, which illustrates duplicated chromosomes. 1057views1rank
Textbook QuestionThe centromere is a region at which . a. sister chromatids are attached to each other; b. metaphase chromosomes align; c. the tips of chromosomes are found; d. the nucleus is located1155views
Textbook QuestionThe following statements are about the control of chromatin condensation. Select True or False for each. T/F Reducing histone acetylase activity is likely to decrease gene transcription. T/F Mutations that reduce the number of positively charged amino acids on histones should promote open chromatin. T/F Chromatin remodeling complexes add chemical groups to histones. T/F Adding an inhibitor of DNA methylation is likely to reduce gene transcription.750views
Textbook QuestionThe following statements are about the control of chromatin condensation. Select True or False for each. T/F Reducing histone acetylase activity is likely to decrease gene transcription. T/F Mutations that reduce the number of positively charged amino acids on histones should promote open chromatin. T/F Chromatin remodeling complexes add chemical groups to histones. T/F Adding an inhibitor of DNA methylation is likely to reduce gene transcription.694views
Textbook QuestionSister chromatids . a. are two different chromosomes attached to each other; b. are exact copies of one chromosome that are attached to each other; c. arise from the centrioles; d. are broken down by mitosis; e. are chromosomes that carry different genes1313views
Textbook QuestionWhich of the following statements correctly describes the function of the nucleolus?a. Within the nucleolus we find genes for rRNA.b. Nucleoli manufacture mitochondrial proteins for export to the cytosol.c. Nucleoli assemble the nuclear envelope.d. The nucleolus contains the genes that form the Golgi apparatus.232views
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