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Bio 181 Lab Final Exam Questions with 100% correct Answers
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Bio 181 Lab Final Exam Questions with 100% correct Answers
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Bio 181 Lab Final Exam Questions with 100%correct Answers
What is a genome? - ✔️✔️DNA's genetic info
What is chromatin? - ✔️✔️DNA and proteins complex in chromosomes
What are somatic cells? - ✔️✔️Cells that have 2 sets of chromosomes, for example 46
chromosomes in the human body
What are gametes? - ✔️✔️Reproductive cells with half the chromosomes, for example 23
chromosomes in the human body
What are sister chromatids? - ✔️✔️Joined copies of original chromosomes
What proteins attach sister chromatids? - ✔️✔️Cohesins
What separates sister chromatids? - ✔️✔️Separase
What is a centromere? - ✔️✔️Where the chromatids is attached mostly closely to its sister cell.
What is the arm? - ✔️✔️The part separate from the centromere
What is mitosis? - ✔️✔️Division of genetic material, aka sister chromatid
What is cytokinesis? - ✔️✔️Division of the cytoplasm
, What is meiosis? - ✔️✔️Production of daughter cells with half the DNA
What is contained in the mitotic phase? - ✔️✔️Mitosis and cytokinesis
What is contained in interphase? - ✔️✔️G1, Synthesis phase, and G2
Which phase does the duplication of chromosomes occur? - ✔️✔️S phase
What is the G1 phase? - ✔️✔️Growth and development
What is the G2 phase? - ✔️✔️Preparation for cellular division
What is the mitotic spindle? - ✔️✔️Structure of fibers made of microtubules, comes out of
centrosome
What are kineochores? - ✔️✔️Protein structure that have assembled on specific sections of DNA
on the sister chromatids. These pull on the chromosomes
What do nonkinetochores do? - ✔️✔️They assist in elongation of the cell
What is the metaphase plate? - ✔️✔️The midway point between the spindles two poles
What helps kineochores pull sister chromatids apart? - ✔️✔️Motor proteins, these make them
into tubulin subunits
What happens in the G2 phase? - ✔️✔️Nuclear envelope appears, two centrosomes, proteins
haven't condensed
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