What is uniparental disomy and how does it arise?

Q: How can epistasis explain incomplete penetrance?

A: Penetrance in genetic terms refers to the ratio of individuals that carry a specific allele of a…

Q: What is Extrachromosomal inheritance?

A: Inheritance is the process by which this genetic information present in the genes is passed on from…

Q: Explain the causes of familial Down syndrome.  How does it differ from Down syndrome due to…

A: Down syndrome is a disorder in which individuals have an extra copy of chromosome 21 instead of two…

Q: What is crossing over, when does it occur, and what is its significance

A: Genes located close together on the same chromosome are transmitted as a single unit to the daughter…

Q: Why are newborns with an abnormal sex chromosome number more likely to survive than those with an…

A: Humans have a total number of 46 chromosomes that is 23 pairs of chromosomes in which 22 of them are…

Q: What is crossing over, when does it occur and what is its importance?

A: A chromosome is an organized package of DNA found in the nucleus of the cell. Different organisms…

Q: Why is sex-linkedinheritance an example ofnonmendelian inheritance?

A: Sex-linked inheritance is a trait in which a gene is located on a sex chromosome. In humans, it…

Q: what is the benefit of crossing over?

A: REPRODUCTION:- It is the production of offspring from the parents. It is of two types:- 1)Asexual…

Q: Will any of the XY offspring be heterozygous (carriers) for that trait? Will any express it?

A: Be fore getting into result we need to know what Is A Carrier? A carrier is a person who has a…

Q: What is complete dominance?

A: Complete dominance: usually in maximum cases the diploid organisms carry 2 alleles of a gene. When…

Q: What causes incomplete dominance?

A: A gene is the physical and functional unit of heredity. The alternate forms of gene are referred to…

Q: What is crossing over? In which period of meiosis does this event occur?

A: Introduction - Crossing over is a biological event in which chromosomes of the same kind line up…

Q: What is the relationship between non-disjunction, changes in chromosome number and miscarriage?  Why…

A: Chromosome abnormalities are of 2 types viz. numerical, where an individual has abnormal number of…

Q: by what age a person with trisomy 16 can survive?

A: due to nondisjunction of chromosomes in maternal meiosis I stage, there are high chances of more…

Q: Which is the type ofgamete produced by aheterozygous individual?What is the genotypicalproportion of…

A: Alleles are the two-contrasting form of genes. They are pairs of genes on a chromosome that…

Q: What are the effects of aneuploidy?

A: Aneuploidy refers to losses or gains of individual chromosomes from the normal set of chromosomes.…

Q: What are the products of crossing over?

A: The process in which parent cells divide and produce two or more daughter cells is referred to as…

Q: What is an example of Extrachromosomal inheritance?

A: Inheritance is the process by which this genetic information present in the genes is passed on from…

Q: What is meant by Trisomy 21 ?

A: Chromosomal abnormalities are the type of genetic disorders caused due to the change in one or many…

Q: How does meiosis explain the first law of Mendel?

A: The process in which the single cell divides twice in order to produce four cells consisting half…

Q: Why do most cases of Down syndrome originate from the mother? And how is this linked to maternal age…

A: Down syndrome also called "trisomy 21" is a condition in which a child is born having an additional…

Q: What is sex linked inheritances and how to do crosses?

A: The chromosomes are threadlike structures inside the DNA that provide structural support and contain…

Q: What is polyembryony?

A: An embryo is defined as the early developmental stage of eukaryotic organisms following the…

Q: What is the end result of crossing over?

A: Crossing over allows the exchange of genetic material and forms unique combinations of alleles. This…

Q: What is the difference between extrachromosomal and delayed chromosomal inheritance?

A: Usually the genes are the hereditary units of life. The genes are present in the nucleus and from…

Q: what Is trisomy 18?

A: The chromosomes are the thread like structure that contains hereditary information in the form of…

Q: Do the genes of the X and Ychromosomes determine onlysex characteristics?

A: The human cell contains 23 pairs of chromosomes. The first twenty three pairs of chromosomes are the…

Q: What is Trisomy 17?

A: Chromosomal disorders are the disorders that are caused due to increase or decrease in the number of…

Q: What is Trisomy test?

A: The chromosomes are the thread like structure that contains hereditary information in the form of…

Q: What are the two types of twins and how do they arise?

A: The period from conception to birth is called pregnancy. When an egg is fertilized by a sperm, the…

Q: what Is trisomy 13 ?

A: A chromosomal disorder is a missing, extra, or irregular portion of chromosomal DNA. It can be form…

Q: What is the difference between primary Down syndrome and familial Down syndrome? How does each type…

A: Trisomy is the addition of a single chromosome in the whole set of chromosome. Addition of single…

Q: What is the cause of aneuploidy?

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

Q: How is it that genetic abnormalities that include an extra Y chromosome do not have a severe…

A: Genetically all human males normally have a XY chromosome whereas the females have a XX pair. They…

Q: What causes Biparental inheritance?

A: Extranuclear inheritance is also known as cytoplasmic inheritance. It is the transmission of genes…

Q: What is Codominance and incomplete dominance?

A: A character is represented by an organism by at least two alleles. They lie on the two homologous…

Q: Which is more harmful trisomy or monosomy?

A: The chromosomal disorder are caused due to absence or excess or abnormal arrangement of one or more…

Q: by what age a person with trisomy 17 can survive?

A: Disease:   When an organism’s body system does not work properly or any organ affects by viruses,…

Q: Which inheritance is Uniparental?

A: Inheritance is the transmission of genetic traits from parents to the progeny.

Q: What is monosomy ?

A: A chromosomal aberration is a change in a child's genetic material or DNA that affects the…

Q: In general what is thecause of the aneuploidies?

A: Aneuploid cells have an irregular chromosome count. Because each chromosome comprises hundreds of…

Q: What is Trisomy 20?

A: The chromosome 20 likely has more than 500 genes which provide the instruction for the making of…

Q: what is Meiotic Nondisjunction?

A: Meiosis is also known as a double division that occurs in a diploid cell and gives rise to four…

Q: What is the relationship between the severity of symptoms and the size of the chromosome involved in…

A: More the size of the chromosomes involved in the trisomy, more will be the severity of symptoms.…

Q: When is the only time crossing over can occur?

A: The cell cycle is the orderly series of events that allows a cell to grow and divide forming…

Q: Why are the marks of imprinted genes erased and reset during gamete formation?

A: Genomic imprinting is a phenomena which controls the gene expression involved in the embryonic…

Q: by what age a person with trisomy 18 can survive?

A: Trisomy is a rare genetic condition with three extra copies of chromosomes instead of two copies…

Q: Describe two mechanisms for causing uniparental disomy.

A: Uniparental disomy occurs when two copies of a chromosome are inherited from same parent, rather…

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.