Which one explains the form of genetic material before nuclear division? a) Euchromatin b) Heterochromatin c) Chromatin d) Chromosomes

Q: Why Heterochromatin spreads linearly?

A: Heterochromatin refers to the part of the chromosomal regions that appear dark due to the…

Q: What is the primary function of DNA replication in adult human somatic cells?

A: The importance of each molecular process in the body is explained by its function which it performs.…

Q: why does s phase has least cell population？Isn‘t it true that s phase is for DNA replication？why not…

A: A cell is a basic unit of life. All the metabolic pathways responsible for proper function of the…

Q: How do we know that viral and bacterial chromosomes most often consist of circular DNA molecules…

A: DNA is the genetic material present in most of the living organisms. The DNA is made up of 4…

Q: How does the process of cell division contribute to transmission of genetic materials from one…

A: The genetic material is the hereditary substance in the cell. It carries all info. specific to a…

Q: What is the name of the structure that the microtubules bind to during mitosis?

A: Introduction During the mitotic phase, a cell duplicates its chromosomes, segregates them, and…

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: 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: Define the Chromatin Structure and Nucleosomes ?

A: DNA (Deoxyribonucleic acid) is a long thread-like structure, which is approximately 2 meters in…

Q: What two properties, one structural and one functional,distinguish heterochromatin from euchromatin?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: All of the following events happen during prophase, except...    A. Chromosomes are lined up in the…

A: Option  A -Chromosomes lined up in the middle of the cell

Q: What is the function of a centromere? At what stage of the cellcycle would you expect the centromere…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: What are the replication origins in bacteria, yeast, and mammalian cells?

A: Replication starts from a specific sequence present in the genome. It is called the “origin of…

Q: What are the two major components of chromatin?

A: Chromatin is the thread-like structure that is again packed to formed to chromosome.

Q: What is the relation between the concepts of chromatin andchromosome? Are euchromatin and…

A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…

Q: DNA polymerase II (in E. coli) is specialized for which of the following functions?  DNA…

A: DNA replication is the process by which a double-stranded DNA molecule is copied to produce two…

Q: A petri dish contains one yeast cell whose nucleus contains 24 chromosomes.  After the cell…

A: B) 4....48. Is the correct answer.

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: What is prochromosome?

A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…

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: Are sister chromatids identical to each other in nucleotide sequence?

A: Often the term sister chromatid is misunderstood as the homologous chromosome. But homologous and…

Q: What is bidirectional replication?

A: Deoxyribonucleic acid (DNA) replication is the biological process of producing two identical…

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 chromatin, euchromatin, and heterochromatin

A: The nucleus (plural-nuclei) is the most important and essential part of the cell. It directs and…

Q: Why would chromosomes shorten with each replication cycle in the absence of telomerase?

A:

Q: What happens when a eukaryotic DNA replication complex gets to the end of a linear chromosome?  How…

A: DNA replication is a process by which DNA is copied, during this process each single starnd acts as…

Q: If the sequence of one single strand of DNA is C-A-A-G-T-A-G-G-C-T, what is the sequence of the…

A: DNA is a double helical structure, nucleic acid, formed of nucleotide monomers. The DNA has…

Q: What holds the chromatids together?

A: A sister chromatid are identical copies (chromatids) that are produced by the DNA replication of 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: Why does nucleation sites cause the number of microtubules to rise but the length to grow unstable?

A: Microtubules are the structural part of the eukaryotic cells that are formed by the tubulin…

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: Which of the following is the most compact level of chromatin structure? Metaphase chromosomes…

A: Metaphase chromosomes is the most compact level of chromatin structure.

Q: Which of the following represents the order of increasingly higher levels of organization of…

A: Histones octamer play a key role in the packaging of DNA. DNA wraps the core histones and forms the…

Q: hat happens to the ends of linear chromosomes in eukaryotes during replication?

A: DNA replication in eukaryotes is a highly regulated process and usually requires extracellular…

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: 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 that maintains identical chromatids bound?

A: DNA is present inside the nucleus. DNA coils around the histone to form a nucleosome. Nucleosomes…

Q: How are chromosomes in eukaryotic cells packaged?

A: The eukaryotic DNA can be packed into chromosome shape. this type of packaging is only observed it…

Q: How come cells in a multicellular organism look different and have different functions? b) How…

A: Organisms  Organism are the entity that has life. Organisms can be unicellular or multicellular.…

Q: Identify two important enzymes involved in replication. Where does replication occur in the cell?…

A: As there are many questions given in one, the solution is provided only to the first three…

Q: What structure is formed by when  two sister chromatids areheld together by a centromere?

A: In the process of cell division, the chromatin present in the nucleus shrinks and form a thread-like…

Q: what is the difference between chromatid and chromatin?

A: Chromatids and chromatins are components of genetic materials or chromosome of a eukaryotic…

Q: How many nucleosomes are involved per turn of the spiral arrangements of the chromatin fiber?

A: Nucleosome is the main and basic unit of DNA packaging in the eukaryotic cells. The structure of…

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.