Answer the following questions about telomeres:   1. What are telomeres? 2. Why are telomeres necessary? 3. Why do prokaryotic cells not have telomeres?

Q: Differentiate centromere, centrosomes, centrioles, and kinetochore. Explain in a detailed manner.…

A: Centromere centrosomes centrioles kinetochore a constricted region of a chromosome that separates…

Q: If the DNA of chromosome 1 is fully extended, it will exceed the diameter of the nucleus of a cell…

A: DNA packaging is done in order to fit the linear DNA molecule inside the nucleus. Is starts when DNA…

Q: Cystic Fibrosis is caused by which of the following? a. Replacement of three nucleotides with a new…

A: Answer is Option c(Deletion of three nucleotides) and explaination is given in the following steps:…

Q: Answer the following questions. A) Write the protein that catalyzes the formation of phosphodiester…

A: Thousands of different enzymes catalyze metabolic processes in cells. Enzymes are proteins that…

Q: What nucleobase atoms are located in the “major groove” of DNA? What atoms are located in the “minor…

A: Introduction: DNA is a type of nucleic acid that is present in the nucleus of the cell. It is the…

Q: Of the following statements related to the function of telomeres, identify which is FALSE.   a.…

A: Telomerase is an RNA-dependent DNA polymerase that helps extend telomeres. the telomeres are the…

Q: Coding sequences in a post-transcriptionally modified eukaryotic transcript codes for _____. a.…

A: Coding sequence codes for functional protein products. Coding sequence codes for the functional…

Q: what is the importance of the cytoplasmic DNA?

A: Cytoplasmic dna is the dna which is found outside the nucleus and it is found in both prokaryotes as…

Q: does centrosomes needed for mitosis?

A: Centrosomes are structures which are found within cells.  They are composed of two centrioles.…

Q: Which of the following labeled structures is meristematic? 2

A: The meristem is a type of tissue found in plants. Differentiated plant cells generally cannot divide…

Q: Why is it important for DNA to be copied before a cell undergoes mitosis

A: Answer: MITOSIS = It is the process of producing two identical daughter cells from the parent cell…

Q: Describe the location of the following; Describe the location 1. Chromosome 2. Deoxyribonucleic Acid…

A: Introduction: Cell is the structural and functional unit of an organism. An eukaryotic cell is…

Q: The golgi complex breaks down during mitosis and is reassembled. My question is whether the new…

A: Mitosis involves the karyokinesis and cytokinesis. During karyokinesis nucleus divides and during…

Q: Discuss the structure of telomeres

A: Telomeres is a region of repetitive nucleotide sequences found at each end on a eukaryotic…

Q: Refer to the image and answer the questions 1. How are Okazaki fragments joined together? 2. Where…

A: The replication fork is a structure that forms within the long helical DNA during DNA replication.…

Q: Arrange the following cell ultrastructures in the order by which they will pellet out from a series…

A: If we consider that the centrifugation is first carried out at lower speed and then the speed is…

Q: How many copies of the H2B histone would be found in chromatin containing 50 nucleosomes? a. 5 b. 10…

A: The defined length of DNA is attached to a collection of histones called octamer. The total unit is…

Q: How do we know that DNA replication occurs during inter-phase, not early in mitosis?

A: BASIC INFORMATION CELL DIVISION  It is necessary for all the cells In this the parent cell divides…

Q: Which of the following statements about nucleosomes is NOT true? DNA is on the outside and is…

A: DNA- “deoxyribonucleic acid” is a complex structure that carries the unique genetic code of every…

Q: A previously undiscovered single-cell organism was found living at a great depth on the ocean floor.…

A: Answer- The DNA is wrapped around the histone protein which is an octameric protein. They are…

Q: draw the structure of  telomeres

A: Telomeres are a region of repetitive nucleotide sequences found at each end on a eukaryotic…

Q: Explain Telomere cell maintenance and give exmaples.

A: Introduction Telomeres protect chromosomal ends from being destroyed. Telomeres protect chromosomes…

Q: Identify the phase in mitosis in which the DNA uncoils and the nuclear membrane is formed again.…

A: Mitosis is the division process where the cell divides to form two identical similar cells. In the…

Q: Answer the following four questions about DNA and chromosomes. (Hint: there may be slightly…

A: Deoxyribonucleic acid (DNA) It is one of the genetic material which have two polynucleotide chains.…

Q: Describe the structure of the following with the help of labelled diagrams.(i) Nucleus (ii)…

A: The cell is the structural and functional unit of life. This unit of life functions in a coordinated…

Q: Explain why only bacteria and not eukaryotes can produce polyribosomes.

A: Introduction Prokaryotes are small single-celled organisms that lack a recognizable nucleus, as well…

Q: How many chromosomes are in a stomach cell?

A:

Q: Certain organisms contain cells that possess polytene chromosomes. What are polytene chromosomes,…

A: "ANSWER  Polytene chromosomes are large chromosomes which can be generally discovered in insect…

Q: Define telomeres and describe how they are synthesized.

A: Here we will know about the definition of telomere and the process by which they are synthesized. A…

Q: 1.1 What components must be available for DNA polymerase III to proceed with DNA synthesis during…

A: DNA replication is the process in which DNA itself act as template for the formation of DNA strand…

Q: How do prokaryotic & eukaryotic cells differ in size? How are their chromosomes shaped? Where in the…

A: INTRODUCTION Eukaryotes : cells with clearly defined nucleus. Prokaryotes : lack nucleus and other…

Q: Which one of the following entries most accurately states the number of DNA double helices…

A: A chromatid is one of two identical halves of a replicated chromosome.

Q: What structure of the nucleus has the function of transporting small molecules through the nuclear…

A: The nucleus is an important membrane-bound organelle in a eukaryotic cell that houses the genetic…

Q: What enzymes are required for the initiation of replication in eukaryotes? Are these complexes the…

A: DNA replication in eukaryotes takes place in three stages: initiation, elongation, and termination,…

Q: In a single strand of DNA, is it ever possible for the number of adenines to be greater than the…

A: In a DNA molecule purine always pairs with a pyrimidine base. Adenine is a purine base and thymine…

Q: In your own words, explain how cancer cells differ from normal cells in regard to the following:…

A: The ends of a chromosome are known as telomeres. These are regions that do not code for the DNA in…

Q: Below is a diagram of DNA replication as currently believed to occur in E. coli. Arrows start from…

A: DNA replication is the process of producing two identical replicas of DNA from one original DNA…

Q: What are telomeres and how do they affect DNA replication/mitosis?

A: Mitosis is a type of cell division in which a parent cell divides into two genetically identical…

Q: List three major CONSEQUENCES of the lack of telomeres, based upon what you know about their normal…

A: Telomere- Telomeres are distinctive structures found at the ends of our chromosomes. They are…

Q: How many microtubules are in a centrosome? In thedrawing, circle and label one microtubule and…

A: The centrosome is an organelle and microtubules are organized in the centrosome. A centrosome is…

Q: 1. The four core histones are relatively small proteins with a very high proportion of positively…

A: Histone proteins are tiny structure that are made up of 8 proteins and are safely stored inside the…

Q: Identify the phase in mitosis in which the chromatin condenses into chromosomes. Select one: a.…

A: Chromatin condensation is driven by condensins and associations between histones. Albeit as of now…

Q: Describe the structure, function, and synthesis of telomeres.

A: DNA (Deoxyribonucleic acid) is the hereditary material present in most of the living organisms,…

Q: The octamer core of nucleosomes contains: а. 4H2A, 4HB, 2нз, 2H4 b. 2H2A, 2HB, 2нЗ, 2H4

A: Nucleosome is the basic structural unit of DNA packaging in eukaryotes. The structure of the…

Q: Answer the following two questions. Ensure that your answer is separated into two parts, labelled A…

A: Introduction:- Eukaryotic chromosomes are made up of linear DNA with two ends, whereas prokaryotic…

Crime Scene Investigation

A crime scene refers to a place where a crime has occurred. The purpose of crime scene investigation (CSI) is to analyze the complete scene and catch the culprit based on the pieces of evidence collected from the place of crime. The people involved in this process are referred to as crime scene investigators.