Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 4.3, Problem 3CC
WHAT IF? As a cell begins the process of dividing, its chromosomes become shorter, thicker, and individually visible in an LM. Explain what is happening at the molecular level.
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Students have asked these similar questions
2) Main component of the cell walls in plants:
in fungi:
bacteria:
3) What are the double-membrane bounded organelles in a cell?
4) A
is the whole genetic material of an organism. Which organelles in cell have their
own DNA?
and
Human Genome Project were created with
in 1992, and completed in
chromosomes and
chromosomes beginning
(year).
5) After the invention of
by
structure of biological
cells has better understood. Firstly, he made observations on
is used for the first time in his work.
cells which were dead. The word
6)
chromosome abnormalities
(Trisomy21) is an example of human chromosomal disorder. Types of
are
7) Order phases of cell cycle putting numbers in blue circles.
is the longest
phase in cell division.
cells make up most of your body's tissues and organs, including
skin, muscles, lungs, gut, and hair cells divide by
8) A- For each number, write their names on the right. B- Label the figure below similarly (fill in boxes).
BBIX
1-
2-
3-
1
3
4
4-
. Genomes A, B, and C all have basic chromosomenumbers (x) of nine. These genomes were derivedoriginally from plant species that had diverged from each other sufficiently far back in the evolutionarypast that the chromosomes from one genome can nolonger pair with the chromosomes from any other genome. For plants with the following kinds of euploidchromosome complements, (i) state the number ofchromosomes in the organism; (ii) provide terms thatdescribe the individual’s genetic makeup as accurately as possible; (iii) state whether or not it is likelythat this plant will be fertile, and if so, give the number of chromosomes (n) in the gametes.a. AABBCb. BBBBc. CCCd. BBCCe. ABCf. AABBCC
Table 1a Why Are Cells Small
Length (l) (cm)
Width (w)
(cm)
Height (h) (cm)
Size of Cross Section (h x w) (cm)
Distance Traveled by IKI from Potato Edge (cm)
Area of White Region (l x w) (cm)
2.50
2.50
2.50
6.25 cm
0.20 cm
2.64 cm
2.00
2.00
1.00
2.00cm
0.30 cm
1.87 cm
1.50
1.50
1.50
2.25 cm
0.50 cm
1.50 cm
1.00
1.00
1.00
1.00 cm
0.40
0.60 cm
2.00
0.50
0.50
0.25 cm
0.20 cm
0.15 cm
0.50
0.50
0.50
0.25 cm
0.30 cm
0.10 cm
help to fill the table
Chapter 4 Solutions
Campbell Biology in Focus
Ch. 4.1 - Prob. 1CCCh. 4.1 - Prob. 2CCCh. 4.2 - Briefly describe the structure and function of the...Ch. 4.2 - Prob. 2CCCh. 4.3 - What role do ribosomes play in carrying out...Ch. 4.3 - Describe the molecular composition of nucleoli,...Ch. 4.3 - WHAT IF? As a cell begins the process of dividing,...Ch. 4.4 - Describe the structural and functional...Ch. 4.4 - Describe how transport vesicles integrate the...Ch. 4.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 4.5 - Describe two characteristics shared by...Ch. 4.5 - Prob. 2CCCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - WHAT IF? Males afflicted with Kartageners syndrome...Ch. 4.7 - In what way are the cells of plants and animals...Ch. 4.7 - Prob. 2CCCh. 4.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 4.8 - Colpidium colpoda is a unicellular protist that...Ch. 4 - Which structure is not part of the endomembrane...Ch. 4 - Which structure is common to plant and animal...Ch. 4 - Which of the following is present in a prokaryotic...Ch. 4 - Cyanide binds to at least one molecule involved in...Ch. 4 - Which cell would be best for studying lysosomes?...Ch. 4 - DRAW IT From memory, draw two eukaryotic cells....Ch. 4 - SCIENTIFIC INQUIRY In studying micrographs of an...Ch. 4 - FOCUS ON EVOLUTION Compare different aspects of...Ch. 4 - FOCUS ON ORGANIZATION Considering some of the...Ch. 4 - Prob. 10TYU
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- VISUALIZE Sketch a roughly cuboidal cell preparing to divide. Indicate the orientation of the preprophase band and the site where the new cell walls of the daughter cells will form.arrow_forwardPlease help a. How many chromosomes and/or sister chromatids do Figure A and B show? b. What is the name of the process that took place to get from structure A to structure B?arrow_forward. Based on Figure 17-4, how many chromatids are in atrivalent?arrow_forward
- Quick help!!! Answer the following questions Only in cell biology 1. A. Discuss the roles of two main types of genes that are critical in cancer? B. What is the difference between a totipotent and a pluripotent stem cell? Give an example to each.arrow_forward. A geneticist working on a haploid fungus makes a cross between two slow-growing mutants called mossy and spider (referring to the abnormal appearance of the colonies). Tetrads from the cross are of three types (A, B, C), but two of them contain spores that do not germinate.Devise a model to explain these genetic results, and propose a molecular basis for your model.arrow_forwardSolid Wire Models of Cell Division 1- Get four solid wires, 2 long (1 green and 1 red) and two short (1 green and 1 red). This will represent the chromatin in a cell. The wires of the same length are homologous. Red wires will represent the chromatin from the female parent while green wires represent the chromatin from the male parent. Label the chromatin as follows: long green- 1a short green- 2c long red- 1b short red- 2d 2- Let the cell pass S phase. Replicate or duplicate each chromatin fiber. Do this by getting another set of wire identical to the original set. Label as before. 3- Combine the replicated chromatin fiber using masking tape. The tape will also mark the position of the centromere. For the short chromatin, place the tape exactly at the middle while for the long chromatin, place it at a point % from the end of the wire. 4- Assume that the chromosome fibers are folded. This will now represent the chromosomes. OR Varrow_forward
- Biologists have long been interested in the effects of radiation on cells. In one experiment, researchers examined the effect of radium on mitosis of chick embryo cells growing in culture. A population of experimental cells was examined under the microscope for the number of cells in telophase (as a measure of mitosis occurring) before, during, and after exposure to radium. The results are shown in the Figure. What is the effect of radium exposure on mitosis? Source: R. G. Canti and M. Donaldson. 1926. The effect of radium on mitosis in vitro. Proceedings of the Royal Society of London, Series B, Containing Papers of a Biological Character 100:413419.arrow_forwardganism you are working with has the following chromosomes. Place the chromosomes of this organism onto the cell below such that the diagram accurately shows a cell from this organism in metaphase of mitosis. Note 1: Only place chromosomes you need. You don't need them all. Note 2: You can place the 'Blank Box' image if you don't think you need a chromosome at a particular position. Deshed ine the metaphase platearrow_forwardLab Prelab 1.4 Name: Define the following terms: Note: the definitions don't necessarily need to be long or even complete sentences as long as they are correct. Also some of these terms have different definitions depending on the source you choose. If you see multiple definitions, choose the one that makes the most sense to you. Chromosome: Sister chromatid: Gene: Genome: Genotype: Phenotype: Mitosis: Meiosis: Centromere: Centrosome: What is the difference between the diploid and haploid numbers of chromosomes?arrow_forward
- • Illustrate the chromosome changes in interphase and mitosis using a diploid cell that is 2n=4 (two large and two small chromosomes). • Label the circles as G1 and G2 stages of interphase and each phase of mitosis (in order). Draw the chromosome in each circle using the following guidelines. 1) For unreplicated chromosome draw a line (/) and for replicated chromosome draw an X. 2) For simplicity, do not indicate that the chromosomes are decondensed chromatin during interphase. ● 3) Skip drawing the nuclear membrane or spindle fibers, since we are focusing on the chromosomes. • Label genes in the resulting daughter cells as A/a and B/b. (These letters represent genes which are at icular places along the DNA molecule. Each chromosomes can have a thousand genes but we are focusing on these two.arrow_forward13 How many chromatids are shown in this DIAGRAM? How many centromeres? Please choose from one of the following options. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 4 chromatids, 4 centromeres 8 chromatids, 8 centromeres 4 chromatids, 4 centromeres 8 chromatids, 4 centromeresarrow_forwardUsing examples, explain how biology can be studied from a microscopic approach to a global approach.arrow_forward
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