Q: In what type of chromosome is the centromere is more or less in the middle?
A: A chromosome is a rod-shaped structure that basically contains DNA and protein. A structure…
Q: Given that most chromosomes occur in homologous pairs, do most genes also occur in pairs?
A: Human beings have 23 pairs of chromosomes. Out of which 22 pairs are called autosomes and one pair…
Q: which Chromosome is the smallest human chromosome?
A: Chromosomes are the thread like structures which are located in the nucleus. There are 23 pairs of…
Q: where is the chromosome abnormality? (chromosomes 1-23)
A: The chromosomal abnormality is the result of errors in the cell division following meiosis or…
Q: How is the chromosome region where the centromere is located called? How are chromosomes classified…
A: Cell biology is considered as the study of cells, their structure, and their functions. The cells…
Q: If there are 9 chromosome pairs, how many univalents are there at anaphase?
A: The chromosomes are found in eukaryotic cells that is the compact form of DNA. The DNA with histone…
Q: How do we know that chromosomes exist in homologous pairs?
A: The eukaryotic cells contain different organelles like lysosomes, mitochondria, Golgi apparatus,…
Q: Why is the term “crossing-over” appropriate for the exchange of DNA segments between homologous…
A: Crossing over can be defined as the exchange of genetic material that occurs between the non-sister…
Q: No disjunction is the reason we get chromosome number anomalies. Explain?
A: Chromosomes are present in the nucleus of the cell and are actually a compilation of the cell’s DNA.…
Q: why is meiosis important concept in genetics?
A: Ever since Charles Darwin postulated his theory of Natural selection, it became important to…
Q: What is pairing of homologous chromosomes known as? Where that pairing takes place?
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: In what type of chromosome is the centromere is very close to one end?
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: Which of the following does NOT accurately describe homologous pairs of chromosomes?
A: Homologous chromosomes are pairs of chromosomes that are similar in size, shape, appearance, gene…
Q: If an organism's diploid number of chromosomes is 10 (2n = 10), how many %3D different possible…
A: The diploid is a state of the cell when the cell has two sets of similar kind of chromosomes and the…
Q: Why is random assortment of chromosomes necessary? What can we expect if this does not occur?
A: When reproductive cells mature, the Principle of Independent Assortment outlines how various genes…
Q: How many chromosomes are in a human karyotype?
A: When eukaryotic cells divide via mitosis, the chromatin condense the highest to a point wherein we…
Q: Why do you think there are no viable trisomies of chromosome 1?
A: Chromosome 1 is the largest chromosome in human. Approximately 8% of the total DNA is found in this…
Q: How can alteration in chromosome number or structure impact living organism? Explain how Down's…
A: Meiosis also called as reductional division is the type of cell division where the number of…
Q: Are there trisomies of the other chromosomes besides chromosome 21?
A: Yes, besides chromosome 21, other trisomies are also there.
Q: Would you assume that the length of a chromosome might have anything to do with the number of…
A: The chromosomes are duplicated during the process of cell division. The process of cell division…
Q: How do we know whether two chromosomes are homologous?
A: Homologous chromosomes are made up of chromosome pairs having Similar length, Similar centromere…
Q: Why is random assortment of chromosomes necessary? What can we expect if this does not occur?
A: Gregor Mendel postulated a laws of inheritance ;which are mainly applicable to the eukaryotic…
Q: What is the chromosome theory of heredity? Why was it important?
A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…
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 nucleoid body
A: Unlike the eukaryotes, the prokaryotes have several different organizations within their cells. The…
Q: How many genes are there present on chromosome 12 ?
A: Chromosomes are thread-like structure, which are composed of nucleic acids and protein. They are…
Q: Which of the following chromosome pairs would contain all of the same genes (not necessarily at the…
A: A chromosome is a long DNA molecule that comprises part or all of an organism's genetic material.…
Q: What are homologous chromosomes?
A: Homologous chromosomes that are also known as homologs, come one from each parent. In other words,…
Q: How many number of chromosomes in a human gene?
A: Chromosomes can be defined as ribbons of Chromatin material and histone proteins organized in the…
Q: How is a nucleoid different from a cell nucleus?
A: Cell is a basic structural and functional unit of all life forms. All organisms are made of at least…
Q: If an organism has 15 pairs of homologous chromosomes, how many chromosomes will each daughter cell…
A: Mitosis: Some cells in the skin, embryo, gut divide constantly and there are few cells that divide…
Q: Given the end results of the two types of cell division, why is it necessary for homologs to pair…
A: Meiosis is the process by which gametes are produced. This is beneficial to recover the mixture of…
Q: Given the diploid chromosome number highlighted above, what is the haploid chromosome number?
A: Cell division is the process of division of cell which occurs by two process - Mitosis Meiosis…
Q: What causes polyploidy?
A: Heredity as we know is the passing on of traits from parents onto their offsprings. Organisms that…
Q: What type of chromosome (metacentric, submetacentric, acrocentric, or telocentric) is chromosome 1?…
A: Centromeres consist of a complex blend of DNA and proteins. They are important for cell division and…
Q: Which of the following describes a Homologous Chromosome?
A: The gene is the basic fundamental of heredity. It is found in the chromosomes of the nucleus of the…
Q: hat is the 2n number for the dog? What is the n number for the dog?
A: 2n number of the dog=78
Q: If two chromosomes of a species are the same length and have similar centromere placements and yet…
A: Chromosomes are carriers of genetic information. They are the physical units that transfer genetic…
Q: What is the difference between alleles and homologous chromosomes?
A: The term 'chromosome' has been derived from the Greek words which means 'color (chroma) and body…
Q: Why are changes in chromosome number almost always more severe than changes in chromosome structure?
A: Introduction Chromosomal aberrations are the common cause of abnormal development of the embryo or…
Q: How does nondisjunction lead to disorders in chromosome number?
A: When the nucleotides sequences in the genome of an organism are altered or changed due to mistakes…
Q: What is the 2n chromosome number of Valanga?
A: Genetic material are the means by which hereditary information is passed on from one generation to…
Q: how does the base sequence contained in the telomeric regions of chromosomes differ from that found…
A: Telomere Telomere is a special structure having unique DNA which is located on the end of each…
Q: How many genes are there present on chromosome 8?
A: Introduction Any cell contains the specific number of chromosomes and it is referred to as ploidy…
Q: why Monoploids as well as polyploids containing odd numbersof chromosome sets are usually sterile?
A: The changes in the chromosome are of two kinds that involve changes in the complete set of the…
Q: What is known as homologous chromosomes ?
A: Chromosomes are highly condensed forms of deoxyribonucleotide [DNA] that are thread-like structures…
Q: In many organisms, including humans, chromosomes occur in homologous pairs; where does each member…
A: In higher organisms, chromosomes occur in homologous pairs. One chromosome of the pair from each…
Q: Why are the homologous regions of the X and Y chromosome important during meiosis?
A: One of the defined types of cell divisions characterized by the occurrence of two rounds of division…
Q: Explain what is meant by the term homologous chromosomes ?
A: Chromosomes are condensed forms of chromatin that are visible during cell division. They were found…
Why is the word homologous used to describe chromosome pairs, rather than the word identical?
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- Variations in Chromosome NumberAneuploidy Describe the process of nondisjunction and explain when it takes place during cell division.Given that most chromosomes occur in homologous pairs, do most genes also occur in pairs?Why is the term “crossing-over” appropriate for the exchange of DNA segments between homologous chromosomes?
- Why are the X and Y chromosomes not considered homologous even though they recombine at the PAR region?In many organisms, including humans, chromosomes occur in homologous pairs; where does each member of the pair originate?If two chromosomes of a species are the same length and have similar centromere placements and yet are not homologous, what is different about them?
- Why are changes in chromosome number almost always more severe than changes in chromosome structure?How do we know that chromosomes exist in homologous pairs?The dog Canis familiaris is a diploid organism with 39 pairs of homologous chromosomes. What is the 2n number for the dog? What is the n number for the dog?
