Define the following terms and their relationships to one another:A. interphase chromosomeB. mitotic chromosomeC. ChromatinD. heterochromatin e. histonesF. Nucleosome

Q: Which of the following favors the alignment of chromosomes along the equatorial plate? a.)Centromere…

A: A cell can divide either by mitosis or meiosis. Mitotic cell division refers to the process by which…

Q: What are the components of a single nucleosome?a. About 146 bp of DNA and four core histone…

A: Introduction: DNA packaging refers to the folding of the DNA of an organism into a structure that is…

Q: Describe the transitions that occur as nucleosomes are coiled and folded, ultimately forming a…

A: Step 1 Nucleosomes are sub-microscopic sub-unit of chromatin which is formed by the wrapping of DNA…

Q: Differentiate between these terms: chromosome, chromatin,and chromatid.

A: The size of the human genome is very large in terms of the number of base pairs and physical length.…

Q: When homologous chromosomes cross over, what is the result?   a. Two sister chromatids get…

A: In homologous recombination similar regions of chromosomes exchange DNA because of which…

Q: 23

A: This double stranded human DNA model was proposed by JAMES WATSON and FRANCIS CRICK. DNA consists of…

Q: What are the components of a single nucleosome?a. About 146 bp of DNA and four histone proteinsb.…

A: Nucleus in a eukaryotic cell consists of well packed DNA in a condensed form of chromatin fibers.…

Q: How many types of histone proteins are present in eukaryotic chromatin? 3

A: In the nucleus of eukaryotic cells, histones are highly basic proteins with a lot of lysine and…

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: The first level of DNA organization in a eukaryotic cell is maintained by which molecule? a. cohesin…

A: Eukaryotes are organisms with the cell nucleus enclosed within a nuclear envelope Deoxyribonucleic…

Q: What difference exists between the compaction of chromosomes during metaphase versus interphase?…

A: Chromosomal condensation: In the case of a eukaryotic chromosome, there are 3 levels of chromatin…

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: Which of the following statements about histones is true?a. They are proteins whose sequence is…

A: The chromosomes are duplicated during the process of cell division. The process of  cell division…

Q: . Describe how chromosomes can vary in size, centromere location,and number.

A: Chromosomes are the thread like structure made up of tightly coiled deoxyribonucleic acid (DNA),…

Q: Which of these items have the same exact Genetic information/ Nucleotide Sequence.  a. Chromosome 1…

A: DNA is the carrier of hereditary information that transfers the genetic information from one…

Q: Sketch and identify four different types of chromosomes based on the position of the centromere.

A: The sxe and number of chromosomes vary from species to species and genera to genera. Usually, within…

Q: Explain Metaphase Chromosome Structure.

A: Metaphase chromosomes in cells that undergoing mitotic or meiotic division are stained with special…

Q: What is a chromosome?   A. A type of protein that associates with eukaryotic DNA and structurally…

A: Cell division that takes place in organisms are mitosis and meiosis. Meiosis is a reductional…

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: Define the term Chromatin?

A: A cell is the basic and fundamental unit of living organisms. They constituent of cell organelles…

Q: Compare and contrast the relationship between chromatin andchromosomes.

A: The genetic material refers to the materials present in the nucleus, mitochondria, and cytoplasm,…

Q: The extended chromatin can not be seen with the microscope and is an active gene Chromatid A O…

A: Gene is the specific sequence of a nucleotide present in the DNA. It encodes a particular protein.

Q: What difference exists between the compaction of chromosomes during metaphase and interphase?

A: The cell cycle starts with long interphase followed by short mitotic phase. Interphase prepares cell…

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: A group of cells is assayed for DNA content immediately following mitosis and is found to have an…

A: Cell division is the process by which a parent cell divides into two or more daughter cells. It is…

Q: Which DNA sequences are more alike: a pair ofsister chromatids or a pair of homologous chromosomes?

A: Normal human karyotype consisting of 46 chromosomes arranged into 23 pairs of chromosomes: 22 pairs…

Q: By definition, a pericentric inversion includes the ________. a. centromere b. chiasma c. telomere…

A: To find: What a pericentric inversion includes by definition

Q: What structure is most important in forming the tetrads? a. centromere b. synaptonemal complex c.…

A: Chromosomes are the rod shaped, dark stained bodies which are most prominently seen in the metaphase…

Q: What is a centromere? How does the position of centromere form the basis of classification of…

A: The chromosomes are the thread-like structure in the cells of living organisms and contain tightly…

Q: Define the terms mutation, autosomes, and sex chromosomes.

A: Introduction :- A mutation is a change in a gene's structure, which is how inheritance works.…

Q: The compaction leading to a metaphase chromosome involveswhich of the following?a. The formation of…

A: Cell cycle, the organised sequence of events in preparation for cell division occurring in a cell.…

Q: How

A: Introduction :- In the cell nucleus, the DNA double helix is tightly wrapped around nuclear…

Q: How many DNA molecules are in a mitotic chromosome?How many strands of DNA nucleotides are in a…

A: DNA is deoxyribonucleic acid which contains nitrogenous base pairs, deoxyribose sugar, and phosphate…

Q: With regard to thickness and length, what do you think chromosomes would look like if you…

A: Introduction  Cytology refers to the study of cell such as cell morphology, physiology etc. As we…

Q: Place the following eukaryotic DNA structures in order of thickness, smallest to largest…

A: These are positively charged proteins that strongly adhere to negatively charged DNA and shape…

Q: One of the most important proteins associated with DNA that helps to organize it in the nucleus is…

A: In this question, we have to explain one of the most important proteins associated with DNA that…

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: Which of the following statements about eukaryotic chromosomes is false? (a) eukaryotic chromosomes…

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: Compare the structure and cell localization of chromosomes during interphase and M phase

A: The cell cycle consists of the gap-1 (G1) phase, gap-2 (G2) phase, synthesis phase (S phase), and…

Q: The molecular tether that links sister chromatids of a duplicated chromosome to each other is (a)…

A:

Q: The DNA and associated proteins of a eukaryotic chromosome are called Chromatin Chromatosome…

A: Eukaryotic chromosomes are made up of DNA that is tightly coiled around histone protein clusters.…

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…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: