Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 10TY
Why do cells within an organism differentiate, such that one cell may eventually become a liver cell and another will become an epithelial cell?
a. Cells differentiate because of differences in gene expression.
b. Cells differentiate because different genes within them encode for different proteins.
c. Cells differentiate because of crossing-over, a random process.
d. Cells differentiate because of differences in genetic code.
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What is the role of cohesin proteins in cell division?
a. They organize the DNA of the chromosomes into highly condensed structures.
b. They hold the DNA of the sister chromatids together.
c. They help the cell divide into two daughter cells.
d. They connect microtubules and chromosomes.
When does chromosomal nuclear DNA, which is found inside the nucleus of a eukaryotic cell, replicate?
A. All types of eukaryotic cell in a human organism replicates throughout their life span.
B. It only replicates during the S phase (synthesis phase) of the cell cycle.
C. The chromosomal DNA only replicates once throughout their lifetime.
D. It replicates during the G1 and G2 phases of the M(mitosis) phase of Meiosis.
What is a critical event that occurs during S phase of the cell cycle?a. Cells decide whether or not to divide.b. DNA replication produces pairs of sister chromatids.c. The chromosomes condense.d. The single nucleus is divided into two nuclei.
Chapter 17 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 17 - How do you feel about the creation and then...Ch. 17 - How far should we go–to what lengths and at what...Ch. 17 - Describe how DNA is replicated before cell...Ch. 17 -
2. Compare and contrast the processes of...Ch. 17 - Explain what mutations are and the role of DNA...Ch. 17 - Name the four phases of mitosis and describe...Ch. 17 -
5. Explain why only one large egg is formed...Ch. 17 - Describe what is meant by selective gene...Ch. 17 - Explain how factors present in the environment can...Ch. 17 - Describe how ribosomes contribute to the formation...
Ch. 17 - Prob. 9CRCh. 17 - Prob. 10CRCh. 17 - What would be the outcome if a cell completed...Ch. 17 - Prob. 2TYCh. 17 - Prob. 3TYCh. 17 - Prob. 4TYCh. 17 - Which of the following are listed in order from...Ch. 17 - Prob. 6TYCh. 17 - Which is likely to be the shortest chain of...Ch. 17 - How many different amino acids could be encoded if...Ch. 17 - Prob. 9TYCh. 17 - Why do cells within an organism differentiate,...Ch. 17 - Which method of cloning is most similar to the way...Ch. 17 - Prob. 12TYCh. 17 - Prob. 13TYCh. 17 - Prob. 14TYCh. 17 -
15. How does the production of sperm differ from...Ch. 17 - Prob. 1AWKCh. 17 - Prob. 2AWKCh. 17 - Prob. 3AWKCh. 17 - Prob. 4AWKCh. 17 - Mitochondria contain their own DNA that is...Ch. 17 - Bacteria can reproduce by simple cell division....
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which statement about eukaryotic chromosomes entering mitosis is NOT true?a. They enter as two chromatids.b. They enter with a single centromere.c. They are soon visible under the light microscope.d. Their DNA is not yet replicated.arrow_forwardWhat is the function of the kinetochore during mitosis?a. It promotes the attachment of monads to each other toform a dyad.b. It is a location where a kinetochore microtubule can attachto a chromosome.c. It promotes the condensation of chromosomes duringprophase.d. Both a and b are correct.arrow_forwardUnpacking of chromosomes and the formation of a new nuclear envelope is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophasearrow_forward
- If a cell containing 10 chromosomes divides by mitosis, how many daughter cells will be produced? a. 15 b. 2 c. 10 d. 20 e. 5arrow_forwardWhat occurs during the S phase of the cell cycle? a. The cytoskeleton is dismantled. b. The cell accumulates the building blocks of chromosomal DNA. c. Chromosomes are duplicated.arrow_forwardWhat is a main difference between onion root tip (plant cell) mitosis and whitefish blastula (animal cell) mitosis? A. The DNA is animal cells is inside of a nucleus but there is no nucleus in plant cells. B. A cleavage furrow is not formed in plant cells due to the rigid cell wall. C. Plant cells do not have DNA and animal cells do. D. Plant cells have undergo prophase where they condense their chromosomes but animal cells skip this step.arrow_forward
- Why are dominant mutations in proto-oncogenes generally not inherited? A. Inherited mutations in proto-oncogenes would not affect cell division rate B. Inherited mutations in proto-oncogenes would decrease cell division rate and no viable embryo would form C. Inherited mutations in proto-oncogenes would increase cell division rate and no viable embryo would form D. Dominant mutations in proto-oncogenes are always inheritedarrow_forwardThis cell process illustrates a. meiosis b. interphase c. mitosis d. cytokinesisarrow_forwardWhen homologous chromosomes cross over, what is the result? a. Two sister chromatids get tangled, resulting in one altering the sequence of its DNA b. Two sister chromatids exchange identical pieces of DNA c. Two nonsister chromatids get tangled, break and proteins re-join them d. Each of the four DNA strands of a homologous pair is broken, and the pieces are mixedarrow_forward
- In the example below, how many chromosomes are in each cell in prophase and anaphase? a. 8and8 b. 4and4 c. 4and8 d. 8and4 e. 2and8arrow_forwardWhich statement is NOT true about mitosis? A Mitosis uses a 2n parent cell to form daughter cells containing 1n chromosomes.Mitosis is a process that duplicates and divides the nuclear contents only. B Mitosis produces two daughter cells that contain the same number of chromosomes as the parent cell. C Mitosis uses a 2n parent cell to form daughter cells containing 1n chromosomes. D Mitosis is nuclear division plus cytokinesis.arrow_forwardA cell in metaphase of mitosis has 20 chromosomes. Therefore, this cell has 40 chromatids. The same cell will have how many chromosomes at anaphase of mitosis? A. 10 B. 40 C. 60 D. 20arrow_forward
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