Bound to the nuclear envelope are SUN and KASH proteins that provide connections between the organization of the nucleus and the cytoplasm. Which of the following pairs DO NOT directly bind to each other in these connections? Plectins and KASH proteins KASH proteins and SUN proteins SUN proteins and cytoplasmic filaments Nuclear lamina and SUN proteins
Q: Why does a nuclear envelope have pores while other membrane of the cell do not?
A: Nuclear Membrane:-Nucleus surrounded by two members. A)Outer Membrane:-It is continuous with the…
Q: Mitosis: Events Name the phase of mitosis in which each event occurs. Each answer choice is used…
A: Mitosis: it is also known as equal division in which each cell devides into two. The process of…
Q: Sister chromatids separate and the new chromosomes begin to move toward the poles. Name: The…
A: Cell division is the process of division of cell into daughter cell. Generally cell divides by the…
Q: telophase
A: The cell cycle of the cell , consist of two phases ( Interphase and the Mitotic or M-phase ) .
Q: Mitosis occurs in stages. Which represents best the correct order? O…
A: Mitosis or Equation division is a process of cell division in which a single cell divides to form…
Q: Cytokinesis usually, but not always, follows mitosis. If a cell undergoes mitosis and not…
A: The process of cell division causes the cell to divide and form two identical halves. Cell division…
Q: /hich of the following statements about mitosis is incorrect? A. The daughter nuclei are genetically…
A: Cell division is defined as the process by which cells multiply and involve nuclear and cytoplasmic…
Q: Which of the following is NOT true about the nucleus? It ____. a. contains the DNA b. is covered…
A: A nucleus is a cell organelle with two membranes.
Q: Which of the followings has continuous connection with nuclear envelope?
A: Nuclear envelope is made up of two lipid bilayer and surrounds the nucleus in eukaryotic cells. It…
Q: Which of the following does NOT begin during prophase? Separation of sister chromatids Centrosomes…
A: Mitosis is a term that indicates somatic cell division where a single cell divides into two daughter…
Q: Non-membrane bound body of the nucleus which disappears in the late prophase and reappears in…
A: Cell division occurs through four phases. They are prophase, metaphase, anaphase and telophase.…
Q: Which of the following is not a - ?component of the nucleus Nucleolus O Cytoplasm O Nuclear envelope…
A: The nucleus is a complex structure in the majority of cells (except blue-green algae and bacteria)…
Q: Spindle microtubules 24.
A: Introduction Metaphase is characterized as where all of the chromosome sets are completely…
Q: Which of the following is responsible for modifying and sorting proteins in the cell? Nucleus O…
A: After the protein synthesis has occurred in the cytoplasm, the job is not over. The freshly prepared…
Q: Which organelle is most prominent in cells that make large amounts of protein? a.chromosome…
A: Proteins are a class of complex nitrogen is organic compound composed of amino acid residues by…
Q: Which of the following is a function of nuclear pores? to allow DNA to enter the nucleus from the…
A: Nuclear pore- the nuclear pore is a protein-linked channel in the nuclear envelope that regulates…
Q: Chromosomes are visible under the microscope during cell division because, disintegration of the…
A: Chromatin is the complex made up of DNA and proteins. It is found in eukaryotic cells and is…
Q: Spindle fibers that are necessary to separate sister chromatids during mitosis are synthesized…
A: Spindle fibers are the proteins made up of microtubules that functions to separate two sister…
Q: Do all cells show the characteristic nucleus and cytoplasmic processes? Why or why not? Explain.
A: All living organisms are made up of cells. Cell is the basic functional and structural unit of all…
Q: Membrane separating the contents of the nucleus from the rest of the cell ___ Protein synthesis ___…
A: Nuclear membrane membrane separating the contents of the nucleus from the rest of the cell.…
Q: Describe why it is important to settle down the cytoplasm as M phase begins
A: The cell cycle is the cycle of the cell that helps in its division. Cell cycle is divided into…
Q: which of the following would indicate that a cell is in metaphase? Thin, threadlike…
A: Cell division is the process of cellular reproduction. There are two types of cell division,…
Q: Q1: Name one similarity between cell division in prokaryotes and eukaryotes. Q2: Why is binary…
A: Prokaryotic and eukaryotic cell division are two types of cell division processes that are…
Q: form a strong inner lining of the nuclear envelope and provide anchoring sites for interphase…
A: The nuclear membrane is comprised of two phospholipid bilayers. The membrane facing the cytoplasm or…
Q: The correct order of the phases of mitosis is: O anaphase, metaphase, prophase, telophase,…
A: Cell cycle is a cell division process which results in DNA replication and cell growth. The chain of…
Q: Microtubules are structural components in which of the following? Select all that apply. cilia…
A: The cytoskeleton is a structure that helps cells keep their shape and internal organization, as well…
Q: The cellular machinery responsible for protein synthesis is the Group of answer choices - Ribosomes…
A: Protein synthesis During translation a cell reads the information in mRNA and uses it to buil a…
Q: Which of the following statements best describes the "fluid mosaic model" of the structure of the…
A: The cell membrane is defined as a biological membrane that will divide and separate the cell's…
Q: Which of the following steps does not occur during mitosis? O replication of DNA spindle formation O…
A: Mitosis is a type of cell division that is responsible for the increase in the cell numbers within…
Q: Which of the following is not characteristic of the nucleus? Contains nuclear pore Storage genetic…
A: The membrane bound, dense, round, cellular component that houses the genetic material which…
Q: For the following organelles or structures identify their functions. 1. Mitochondrion – 2.…
A: 1. Mitochondrion-they are filamentous...
Q: Which of the following phases of the Cell Cycle is paired with its correct function? O Sphase -…
A: The cell cycle is the event that includes a series of sequences resulting in the formation of new…
Q: Mitosis: Events Name the phase of mitosis in which each event occurs. Each answer choice is used…
A: Different phases of mitosis: Prophase: it is the beginning of mitosis. There is recruitment of…
Q: Which of the following statements regarding the cell cycle is correct? A cell contains more DNA in…
A: The centrosomes are organelles found in animal cells, which are composed of a pair of centrioles and…
Q: Match the phases of the cell cycle to the major events occurring during that phase. G1 phase Growth…
A: A cell cycle is a progression of evens that happens in a cell as it develops and partitions. After…
Q: In plants, the cell wall forms as a young plant cell secretes polysaccharides onto the outer surface…
A: The secondary cell wall is a construction of semi-permeable layer made up of cellulose, xylan, and…
Q: microtubules 25-nm diameter actin filaments 7-nm diameter intermediate filaments 10-nm diameter
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: dpole matures into a frog, and its tail gradually disappears completely because some organelle may…
A: Metamorphosis is the process through which an animal physically changes after being born or hatching…
Q: Cytokinesis usually follows mitosis. If a cell completed mitosis, but did not undergo cytokinesis,…
A: a is the correct answer.. ... Cytokinesis performs an essential process to separate the cell in half…
Q: Which of the following term produces the spindle fibers which pulled the sister chromatids towards…
A: Answer: Introduction: Equational division is also called as mitosis. In this cell division, the…
Q: Also inside the nucleus is the (chromatin/ chromosomes / nucleolus) which contains ribosomal RNA.…
A: Cells are the basic structural and functional unit of life, and those can be divided into prokaryote…
Q: What controls the passage of molecules into and out ofthe nucleus?a. endoplasmic reticulum, an…
A: Answer : B nuclear pores, which consist of membrane proteins.
Q: Which of the following is defined as the division of the cytoplasm? interphase mitosis…
A: All living beings have cells, which are the most basic fundamental unit of life. Cells are…
Q: Mitosisis divided into phases. Match the phase to its characteristic. Chromosomes begin to…
A: Cell division in eukaryotes takes place by a process termed Mitosis. In this process, a cell divides…
Q: At prophase, a cell has____________chromosomes, ______________chromatids,and…
A: Cell cycle is a series of changes occur in a newly divided cell through which it duplicates its…
Q: Cytokinesis usually, but not always, follows mitosis. If a cell completed mitosis but not…
A: Cytokinesis: Cytokinesis is the course of cell division whereby the cytoplasm of a cell is isolated…
Q: In addition to the endoplasmic reticulum and Golgi apparatus, which TWO organelles are used to…
A: Synthesis of protein with the help of instructions given in the DNA is called translation. Proteins…
Q: You are watching mitosis occur in cheek epithelial cells. Which of the following would you see…
A: Mitosis Mitosis is the stage of cell cycle where one parent cell divide into two daughter cells…
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- Question 10 In eukaryotes, the regulatory inputs have been amplified compared to prokaryotes, and a typical gene is controlled by dozens of transcription regulators. These help assemble histone- modifying enzymes, RNA polymerase, and general transcription factors via the multiprotein mediator complex membranes O mitochondria O chromatin-remodeling complexes O chloroplasts amino acidsQUESTION 13 Match the primary sequence to its characteristics/function/fate N-signal signal-anchor stop-anchor nuclear localization sequence KDEL 1. found at carboxyl terminus of ER resident proteins, interaction with its receptor directs retrieval from Golgi 2. hydrophobic, interacts with SRP and translocon, becomes transmembrane helix 3. mostly hydrophobic, interacts with SRP, cut off 4. hydrophobic, interacts with translocon, becomes transmembrane helix 5. basic, interacts with importin-alphaQUESTION 6 Which of the following is FALSE about mitotic cell division and mitosis? O A. Mitotic cell division is 6 stages: Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis while mitosis is 4 stages: Prophase, Metaphase, Anaphase, Telophase. O B. The terms mitotic cell division and mitosis are the same and they can be used interchangeably to refer to cells dividing to make more cells. O C.A mitotic cell division includes mitosis and mitosis is part of a mitotic cell division. O D. During mitotic cell division, 1 cell divides into 2 cells and during mitosis, 1 nucleus divides into 2 nuclei.
- Question 16 Proteins imported into the nucleus are transported via which mechanism? tranlocational transport transmebrane transport gated transport vesicular pransport Question 17 The GroES-GroEL macromolecular complex eubacteria undergoes conformational change; the cis inner cavity widens and elongates as it hydrolyzes bound ATP. True O False Question 18 Dnak is a heat-shock protein 70 in E. coli that stabilizes newly synthesized polypeptides and preserves folding competence O True O False Question 19 What is the correct order of sequence for the mechanism of translocation? 1. The SRP is released, the ribosome binds to a membrane translocation complex, and the signal sequence is inserted into a membrane channel. 2. Cleavage of the signal sequence by signal peptidase releases the polypeptide into the lumen of the ER. 3. The SRP escorts the complex to the ER membrane, where it binds to the SRP receptor 4. As the signal sequence emerges from the ribosome, it is recognized and bound by…QUESTION 17 Twelve recessive proline auxotrophs in Neurospora were isolated in a mutant screen. These mutants do not grow on minimal medium. Pairwise crosses were performed and the diploid F1 were tested for growth on minimal medium. The table below shows the result of these crosses, where (+) indicates growth and (-) indicates no growth on minimal medium. 1 4 6 7 8. 9 10 11 12 1 + (C-1) + 3 4 (C-II) 6 8 9 10 11 12 How many different genes were identified in this mutant screen? gene(s) List the mutants defective in each gene. (Use "-" to link mutants in the same gene, use "," to separate each gene. For example: 1-2, 3-4, 5-6-7) Fill in the gray squares of the table with the expected result. Indicating a (+) for growth and a (-) if no growth. C-I C-II ++++ +++Question 1 GO describes a phase where cells are "resting", and are essentially outside of the cell cycle. They are not preparing to divide (interphase), nor are dividing. Gnomes are a diploid species with 2n = 4. In adult gnomes cardiac muscle cells are permanently in the GO phase. You are preparing a presentation for class on gnome cardiac muscle cells. You have drawn a diagram (see attached file for image*) of the nucleus in a cardiac muscle cell showing the gnome genome. In your drawing there are four 'X'-like shapes, all of which are different sizes. When you receive the marks for your presentation, you've lost marks for your diagram of the gnome genome, as it was inaccurate. Why was your drawing wrong? X 18 Gnome cardiac muscle cell nucleus
- Question 4 Cells that are undergoing the process of mitosis contain condensed chromosomes that are attached to actin filaments. O flagella. O transmembrane proteins. Ospindle fibers. O the Golgi apparatus.QUESTION 4 If a human cell contains 46 chromosomes, which are often "decondensed," and the nucleus is 5-10 microns in diameter, it would be fair to say that the nucleus is a -place. spacious happy crowded lonely QUESTION 5 When human chromosomes have been stained with Giemsa, the dark bands correspond to chromatin that is called "transcri ptionally active," and the light bands correspond to chromatin that is called "transcriptionally inactive." O True O FalseQuestion 42 Which statement is true about mitosis? Page 1 (1E O It is a form of asexual reproduction resulting in daughter cells that each have half the number of chromosomes as the parent cell. O It is a form of asexual reproduction resulting in daughter cells that each have one set of chromosomes identical to the parent cell. O l is a form of sexual reproduction resulting in daughter cells that cach have one set of chromosomes identical to the parent cell. O It is a form of sexual reproduction resulting in daughter cells that each have half the number of chromosomes as the parent cell. « Previous Next Quiz saved at 9:05am Submit O
- QUESTION 22 To understand gap junction activity in cancer cells, you do two experiments. First you inject a single normal cell in a group of normal cells that are surrounded by cancer cells with a dye. You observe that the dye spreads to the surrounding normal cells only (a). Then you inject a single cancer cell with the same dye and observe that the dye does not spread to any of the surrounding cells (b). la) Microinjed Suorescent dye gray Normal cell Cancerous cell white Fluorescent cell Ib) Fluorescent cell Which of the following is a logical interpretation of this experimental result ? O Fluorescent dyes are too big to move through gap junctions O Cancer cells have less actin than other cels O Cancer cells have increased gap junction activity. O Cancer cells have reduced gap junction activity.QUESTION 25 Proteins that lack a sorting signal remain as permanent residents of which part of a eukaryotic cell? OA. The Golgi OB. The lysosome OC. The endoplasmic reticulum OD. The cytoplasm O E. The nucleus QUESTION 26 How are integral membrane proteins thought to become integrated with a membrane? OA. They insert into the membrane at the same time as they are packaged into a COPII vesicle. OB. They insert into the membrane after translation is complete and the stop sequence is detected. OC. The are co-translationally imported into the ER by the translocon, which opens when it detects a stop transfer sequence to release the protein into the membrane. OD. They are implanted in the lipid bilayer by a flipase enzyme. QUESTION 27 Which cellular process does NOT occur in the smooth endoplasmic reticulum? OA. Calcium storage OB. Drug detoxification OC.O-linked glycosylation OD. Carbohydrate metabolism OE. Steroid biosynthesisQUESTION 12 All of the following statements are true about the nucleus EXCEPT Oa. It is surrounded by a nuclear envelope which is a single membrane. Ob. It contains the nucleolus where ribosomal subunits are made. Oc. The nuclear lamina maintains the shape of the nucleus. Od. In the nucleus, DNA combines with proteins to form chromatin. e. The nuclear envelop has pores and allows communication with the cytoplasm.