Q: Because DNA polymerase cannot copy the 5′ ends oflinear DNA molecules, chromosomes will shorten…
A: DNA (deoxyribonucleic acid) is defined as the self-replicating material that carries genetic…
Q: What happens to chromosomes during interphase?
A: In broad sense cell cycle has two phases i.e. interphase and dividing phase or M phase both of these…
Q: What is the relation between the concepts of chromatin and chromosome? Are euchromatin and…
A: Chromosomes are present in the nucleus.
Q: What are Two kinds of cancer-producing mutations?
A: Cancer is defined as any one of a large number of diseases characterized by the development of…
Q: How is DNA packed in the nucleus?
A: Step 1 DNA or deoxyribonucleic acid occurs in living systems and can function as genetic materials.…
Q: How do cancer cells acquire a potential for immortality?
A: The cancer cells are characterized by the ultimate power of division, flooding the blood with…
Q: Describe what can happen to chromosomes in cancer cells.
A: The first abnormal chromosomal identified in a cancer cell was the Philadelphia chromosome. This…
Q: What may happen to cells that accumulate a lot of DNA damage?
A: The cell is the basic structural and functional unit of the body. A cell is composed of various cell…
Q: How do we know that DNA replication occurs during interphase, not early in mitosis?
A: Introduction A normal cell can divide by two process one is Mitotic cell division while the second…
Q: How might a mutation in the DNA result in the formation of cancer ?
A: The mutation is any change or alteration in the nucleotide sequence of the DNA. The mutation of a…
Q: What are the substances that constitute the chromatin? What is the difference between chromatin and…
A: Chromosome and chromatin are the structures present in the nucleus of a cell. Nucleus is one of the…
Q: What would happen if apoptosis (cell death) did not occur in cells that have significant DNA damage?
A: All living organisms are made up of cells. The cells are the basic structural and functional unit of…
Q: Why do the chromosomes in chromatin condense in dividing cells?
A: In non dividing cells, the eukaryotic DNA ,the genetic information is stored as linear chromosomes…
Q: Why Interphase Polytene Chromosomes Arise by DNA Amplification?
A: The gene is the unit of heredity for all living entities. This resides in the form of chromosomes…
Q: One important biological effect of a large dose of ionizing radiation is to halt cell division. What…
A: Cell division is the cycle by which a parent cell separates into at least two girl cells. Cell…
Q: What is the difference between a gene and a chromosome?
A: Gene is a part of DNA that carries information for a specific trait. They are functional unit of…
Q: A human skin cell has 46 chromosomes. After that skin cell goes through mitosis, how many…
A: Mitosis is the cell division process which involves division of a parent cell into two similar…
Q: If a cell suffers damage to its DNA while in S phase, how can this damage be repaired before the…
A: Mitotic Phase-The phase of the cell cycle when mitosis divides the nucleus and distributes its…
Q: Of which substances is chromatin made?
A: The chromosomes are thread-like structures found in the nucleus of the cell. The chromosomes possess…
Q: Which types of macromolecules are found in chromosomes?
A: Biochemistry is the branch of biology or chemistry that deals with the study of the structure and…
Q: What is the difference between metaphase 1 and metaphase 2?
A: In the process of cell division, the chromatin present in the nucleus shrinks and forms a thread…
Q: If the chromatin is removed from a eukaryotic nucleus, what remains?
A: Chromatin is a condensed structure of DNA and proteins that give rise to chromosomes of eukaryotic…
Q: What is the difference between chromosomes and autosomes?
A: The chromosomes are thread-like structures that carry genetic information. They are made up of DNA…
Q: What is the function of euchromatin?
A: The chromatin is the complex formed by the condensation of DNA and histone proteins. Chromatin…
Q: Do Changes in DNA cause Increased Cancer Risk ?
A: The growth of new cells and also the breaking down of the old cells generally occur by a systemic…
Q: What is chromatin? How are chromatin and chromosomes related?
A: Chromatin is a complex of macromolecules made of DNA, RNA, and protein (histone). It is present…
Q: How eukaryotic cells modify chromatin ?
A: Eukaryotic cells modify chromatin through the process called chromatin remodeling. In the process,…
Q: s the chromosomes are being replicated, what happened to the centrosome?
A: A centrosome is a structure present in the cell that participates in cell division. The centrosome…
Q: What is the relationship between the cell cycle and cancer production?
A: A cell is the fundamental, structural, and functional unit of the living cell bounded with a cell…
Q: Why is it important for DNA to be duplicated before mitosis
A: All the cells undergo differentiation and regeneration in order to grow and develop into tissues…
Q: how is the structure of chromatin loops beneficial to a cell?
A: DNA is the genetic material and in humans it is very large molecule compared to size of cell .
Q: when the process of mitosis is used for organisms reproduction, are the new organisms exact genetic…
A: Cell cycle are the events that are required to divide the daughter cell from parent cell.
Q: What is chromatin condensation?
A: The sequence of events by which a cell duplicates its genome, synthesis the other constituents of…
Q: How
A: Introduction :- In the cell nucleus, the DNA double helix is tightly wrapped around nuclear…
Q: Why is it important for a chromosome to be copied before mitosis?
A: Mitosis is a process of cell division in somatic cells. In this cell division, cells divide into two…
Q: What is the structure of a chromosomes?
A: Strasburger first reported the presence of chromosome in eukaryotic cell. The term ‘chromosome’ was…
Q: How many chromosomes are present in a human cell?
A: In humans, 1 copy of chromosome is inherited. One copy is from the female parent and the other from…
Q: Why is it essential for a cell to repair mutations in its DNA? What happens to the cell if the…
A: DNA repair is a mechanism of our body to repair any mutation or any mismatch in the DNA strand.
Q: Why are defects in DNA repair often associated with increases in cancer?
A: Any damage in the deoxyribonucleic acid (DNA) has to be repaired because this damage causes several…
Q: what is interphase and DNA duplication?
A: The longest phase of the cell cycle where the cell spends most of its time is known as interphase.…
Q: what is the difference between chromatid and chromatin?
A: Chromatids and chromatins are components of genetic materials or chromosome of a eukaryotic…
Q: What is chromosome 22 called?
A: Humans generally have 23 pairs of chromosomes (46 chromosomes) in each cell. Chromosome 22 is one of…
Q: Why does chromatin condense during apoptosis?
A: Apoptosis is a genetically programmed phenomenon where a dying cell breaks off in many small…
Q: What is programmed cell death or PCD?
A: A programmed cell death (PCD) is a phenomenon by which those damaged cells are removed which have…
Q: How are chromosomes involved in protein synthesis first step?
A: The central dogma of molecular biology states that the genetic information stored in the DNA is…
What can happen to chromosomes in cancer cells?
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