BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 8, Problem 5SA
In eukaryotic chromosomes, DNA wraps around _________.
a. histone proteins | c. centromeres |
b. sister chromatids | d. nucleosomes |
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The _____ is the physical location that sister chromatids are held together and where microtubules physically attach during mitosis.
a. centriole
b. centrosome
c. centromere
d. chromatin
When DNA synthesis occurs in a cell, it results in the formation of _____.
A. homologs
B. duplicated centrosomes
C. more microtubules
D. sister chromatids
23.
Chromosomes are visible under microscope during cell division because
a. Thickening of chromatins
b. Disappearance of the nucleoli
c. Disintegration of the nuclear membrane
d. Duplication of the DNA
Chapter 8 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 8 - Which is not a nucleotide base in DNA? a. adenine...Ch. 8 - What are the base-pairing rules for DNA? a. A-G,...Ch. 8 - Similarities in ___________ are the basis of...Ch. 8 - One species DNA differs from others in its...Ch. 8 - In eukaryotic chromosomes, DNA wraps around...Ch. 8 - The chromosome number ________ . a. refers to a...Ch. 8 - Prob. 7SACh. 8 - DNA replication requires ________ . a. DNA...Ch. 8 - Energy that drives the attachment of a nucleotide...Ch. 8 - When DNA replication begins, _______ . a. the two...
Ch. 8 - The phrase 5to3 refers to the _________ . a....Ch. 8 - After DNA replication, a eukaryotic chromosome...Ch. 8 - Prob. 13SACh. 8 - _________ is an example of reproductive cloning....Ch. 8 - Match the terms appropriately. ___ nucleotide ___...Ch. 8 - Determine the complementary strand of DNA that...Ch. 8 - Woolly mammoths have been extinct for about 4,000...Ch. 8 - Xeroderma pigmentosum is an inherited disorder...
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- Matching Terms: A. Prophase B. Anaphase C. Telophase D. Metaphase E. Interphase _____1. The sister chromatids are moving apart. _____2. The nucleolus begins to fade from view. _____3. A new nuclear membrane is forming. _____4. The cell membrane begins to pinch in. _____5. The chromosomes de-condense. _____6. The chromosomes are located at the equator. _____7. The nuclear membrane begins to fade from view. _____8. The chromosomes move towards the poles of the cell. _____9. Sister chromatids line up along the equator. _____10. The division (cleavage) furrow appears _____11. The spindle is formed. _____12. Chromosomes are not visible. _____13. The cell plate begins to be built. _____14. Chromosomes replicated. _____15. The reverse of prophase.arrow_forwardWhich of the following events does not occur during some stages of interphase? a. DNA duplication b. organelle duplication c. increase in cell size d. separation of sister chromatidsarrow_forwardinterphase chromosomes are __________ while mitotic chromosomes are a. composed of 4 DNA strands; composed of 2 DNA strand b. composed of 1 DNA Strand; composed of 2 DNA strands c.composed of 2 DNA strands; composed of 1 DNA strand d. composed of 2 DNA strands; composed of 4 DNA strandsarrow_forward
- Identify the phase in mitosis in which the centromere splits and the sister chromatids are pulled to the opposite poles. Select one: a. Prophase b. Telophase c. Anaphase d. Metaphasearrow_forwardIn eukaryotic cells, the nuclear envelope has to disappear in order to directly permit _____. A. the splitting of centrosomes B. the attachment of microtubules to kinetochores C. the extra condensation of chromosomes D. cytokinesisarrow_forwardAt what stage in mitosis do the sister chromatids line up along the midline of the cell? a. Metaphase b. Anaphase c. Telophase d. Prophasearrow_forward
- 1) What phase of mitosis is this? Answer: 2) What is the indicated structure 1? select one. a. chromosome b. chromosome with two sister chromatids c. centrioles/centrosome d. spindle fibres e. metaphase plate 3)If the diploid (2n) number of this cell is 8 how many chromosomes are present? 4) If the diploid (2n) number of this cell is 8 how many sister chromatids are present? 5) If the diploid (2n) number of this cell is 8 how many homologous pairs are present?arrow_forwardWhich of the following cell types will most likely reach cell senescence after many rounds of replication? A. Adult stem cells B. Cancer cells C. Normal adult somatic cells D. Embryonic stem cellsarrow_forwardThe spindle apparatus is formed during the __________ phase of mitosis A. Anaphase B. Metaphase C. Prophase D. Telophasearrow_forward
- The period of the cell cycle when DNA replicates is _________________. a. G1 phase b. G2 phase c. S phase d. prophase.arrow_forwardDuring the cell cycle, overlapping inter-polar microtubules begin elongation during __________, whilechromosome separation commences during __________. A. Metaphase, anaphase B.B. Metaphase, anaphase A.C. Anaphase A, anaphase B.D. Anaphase B, metaphase.E. Anaphase B, anaphase A.arrow_forwardThe complex of proteins that holds two chromatids together is called the... Group of answer choices A. centromere B. spindle microtubule C. kinetochore D. centrosome E. centriolearrow_forward
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