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LSU Biology 1001- Chapter 3 EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS – UPDATED!!! $12.79   Add to cart

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LSU Biology 1001- Chapter 3 EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS – UPDATED!!!

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  • LSU Biology 1001

LSU Biology 1001- Chapter 3 EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS – UPDATED!!! Centromere - Answer-temporarily holds 2 daughter cells together after DNA replication and is the attachment site or microtubules that move the chromosome during cell division Interphase - Answer-the period ...

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  • October 28, 2024
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  • LSU Biology 1001
  • LSU Biology 1001
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LSU Biology 1001- Chapter 3 EXAM
QUESTIONS WITH CORRECT
DETAILED ANSWERS – UPDATED!!!
Centromere - Answer-temporarily holds 2 daughter cells together after DNA replication
and is the attachment site or microtubules that move the chromosome during cell
division

Interphase - Answer-the period between cell divisions; contains three subphases
i. During G1, a cell grows, may specialize, and may divide in response to external
signals
ii. During the S phase, the cell duplicates its DNA
iii. During G2, the cell may continue growing and synthesize materials needed for
division

Mitosis - Answer-the division of the nucleus

Cytokinesis - Answer-the division of the cytoplasm
1. In animal cells, the following events occur
a. Microfilaments around equator contract
b. This constricts the cell's equator
c. Eventually, they pinch the cell in two
2. Cytokinesis in plant cells is quite different (Figure 9-10)
a. A stiff cell wall means a different mechanism is required
b. Carbohydrate-filled vesicles accumulate at equator and fuse
to form a cell plate
c. The cell plate grows at the edges, eventually partitioning cell

Duplicated Chromosomes - Answer-Chromosomes copied during the S phase of
interphase

Sister Chromatids - Answer-2 identical DNA double helices

Spindle - Answer-forms from the condensing of the duplicated chromosomes

Spindle Microtubules - Answer-microtubules that make up the spindles

Centrioles - Answer-formed by spindle microtubules; helps organize spindles

Kinetochore - Answer-a protein containing structure where the chromosomes become
attached to the spindle; near the centromere

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