What genetic process is occurring in a puff of a polytene chromosome? How do we know this experimentally?

Q: What is the purpose of chromosome painting?

A: Chromosome painting is a genetic technique used for diagnosing several congenital diseases in…

Q: What is a chromosome walking?

A: The genome of an organism is defined as the whole genetic information that is inherited from one…

Q: What makes up a yeast artificial chromosome (YAC)?

A: Artificial chromosomes are cloning vectors, which contain the DNA sequence elements that are…

Q: How are two topoisomers different from each other? How are theythe same?

A: The group of isomers that have the same molecular formula, stereochemical bond connections and…

Q: where and when recombination occurs?

A: Recombination is the process in which DNA segments are nicked and then recombined to form new…

Q: What are polytene chromosomes?

A: A Chromosome is an entire chain of Deoxyribonucleic acid (DNA) with stabilizing proteins. The DNA is…

Q: What is reverse tandem duplication?

A: Duplication is a type of mutation, which involves the production of one or more copies of a gene or…

Q: What is the importance of Chromosome Remodeling for the biological processes?

A: In the cell nucleus, the DNA chain is wrapped around a histone protein.  This complex of DNA chain…

Q: what is the functions of puffs in polytene chromosome?

A: Giant chromosomes are much larger in size than the normal chromosomes, reaching a length a length of…

Q: In which chromosome can you find FOG2?

A: Chromosome is a long DNA molecule which is found in nucleus of all cell.

Q: What are artificial chromosomes and why are they used?

A: A chromosome is a thread like structure present within the living cells. It contains the genetic…

Q: What is the genetic basis that causes the symptoms of Downsyndrome?

A: Genetic diseases can be defined as the diseases which is cause due to the change in the genetic…

Q: which functions do the two telomere-associatedcomplexes, telomerase and shelterin, fulfill at…

A: The telomeres represent the ends of all eukaryotic chromosomes and they serve an important…

Q: Referring to the Meselson-Stahl experiment, what is the % hybrid (15N - 14N) in the 5th generation?

A: The Meselson-Stahl experiment was able to show that DNA (deoxyribonucleic acid) replication occurs…

Q: What do you mean by balancer chromosome ?

A: Chromosome is a long stretch of DNA, it is packaged with histone protein to maintain its integrity,…

Q: What is the basis for homology among chromosomes?

A: The thin, string-like structure, occurring in the nucleus of all cells of an organism is a…

Q: What are polytene chromosomes and chromosome puffs?

A: Giant chromosomes are much larger in size than the normal chromosomes, reaching a length a length of…

Q: what is length of chromosome 23 ?

A: The chromosome is a molecule of DNA and is packed with proteins in a condensed form. These are…

Q: What does the term recombination mean? What are two causes of recombination?

A: The gene is a DNA segment that consists of sequences responsible for the structure and function of…

Q: How does chromosome painting work?

A: Chromosome Painting, or FISH (Fluorescence In Situ Hybridization) is the powerful method used to…

Q: what is length of chromosome 17 ?

A: The deoxyribonucleic acid (DNA) is the sequence that carries the genetic information of an organism.…

Q: How are rearrangement breakpoints determined?

A: Introduction: Rearrangements refer to the modifications of the genome on the large scale and it can…

Q: what is length of chromosome 18 ?

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

Q: What is chromosome painting used for?

A: Chromosome painting is a technique in which the chromosomes are visualized by using fluorescently…

Q: If two genes are more than 50 mu apart, how would you ever be able toshow experimentally that they…

A: The exact location of the gene on the respective chromosomes is identified by the technique of…

Q: What are polytene chromosomes ? What is the role of polytene chromosomes ?

A: A Chromosome is an entire chain of Deoxyribonucleic acid (DNA) with stabilizing proteins. The DNA is…

Q: what is Mitotic Recombination?

A: Mitosis is a type cell division by which the somatic cells are formed. It involves a series of steps…

Q: What are the two types of recombination? What are the details of each type? What components are…

A: Recombination is considered the process, where the DNA gets broken and recombine to form new…

Q: What chromosome rearrangement is thought to be the source of new genes?

A: Chromosome rearrangement is a change in the order of base sequences along one or more chromosomes.…

Q: What are the primary and the secondary constrictions of a chromosome? What is the other name given…

A: Chromosomes have constrictions on their centromere regions. This constriction is known as primary…

Q: what is chromosome 2 length?

A: Chromosomes are thread-like structure, which are composed of deoxyribonucleic acid (DNA) and…

Q: What is chromosome painting  ?

A: The thread-like structure found inside the nucleus of the cell is called a chromosome. It consists…

Q: What is a Nucleoid and where is it found?

A: Prokaryotes are single-celled organisms and do not have a separate nucleus. These include archaea…

Q: polytene chromosome

A: Polytene chromosome is the largest chromosome which contains thousands of DNA strands and is majorly…

Q: What are the steps of recombination?

A: The physical crossing over during meiosis of parental heterozygous homologous chromosomes or genes…

Q: How many centromeres are in a chromosome?

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

Q: what is length of chromosome 22 ?

A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…

Q: Which chromosome lacks a polymorphic heterochromatic region often observed in G-banded chromosomes…

A: In 1928, E. Heitz coined the terms euchromatin and heterochromatin to describe the parts of…

Q: what is length of chromosome 20 ?

A: Step 1 Chromosome 20 is the smallest metacentric autosome out of 23 pairs of chromosomes in humans.…

Q: What is Chromosome Banding ?

A: A gene is a fundamental unit of heredity and a succession of nucleotides in DNA (deoxyribonucleic…

Q: What is the highest level of chromosome condensation and  is DNA condensation important?

A: DNA is the genetic material in most organisms. It is the information hub of the cell that contains…

Q: What is balancer chromosomes? How balancer chromosomes are used ?

A: Chromosomes are DNA-carrying structures located in the center (nucleus) of cells. The substance that…

Q: what is length of chromosome 16 ?

A: Introduction: Every human has 23 pairs of chromosomes. Out of these, 22 pairs are autosomes and 1…

Q: What are the different levels of chromosome packaging?

A: Chromatin is a thread-like material present in the nucleus of the non-dividing cell and it is made…

Q: What chemical component of the chromosome makes up genes ?

A: The cells have many organelles. Each organelle is involved in a specific function. The nucleus of…

Q: what is an inversion loop ?

A: Introduction Inversion: when there is breakage and inverted rearrangement occurs in the chromosome…

Q: Which is the Fundamental Unit of Chromosome Packaging?

A: The length of DNA for a human diploid cell is 2.2 meters. This length is far greater than the…

Q: Which are the six properties of recombination deduced from genetic experiments?

A: The physical crossing over during meiosis of parental heterozygous homologous chromosomes or genes…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.