What is a down syndrome?

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: What is the genotypic ratio

A: Dominant seed color-yellow - indicated by RR Recessive seed yellow- green - indicated by rr when…

Q: Do we know what genes cause Down syndrome?

A: In simple words, Gene can be defined as the basic physical and functional unit of heredity. Genes…

Q: What is incomplete dominance?

A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…

Q: is an attached earlobe a dominant or recessive trait?

A: Answer: Introduction: Attached earlobes and free earlobes both are representative demonstrate the…

Q: How can you explain that not all Down syndrome cases are due to nondisjunction?

A: The syndrome can be analyzed as per the clinical signs and side effects that are associated with one…

Q: What is Down syndrome ? When does Down syndrome occur ?

A: Human genetic disorders are caused due to the absence or excess or abnormal arrangement of one or…

Q: How is prenatal diagnosis of Down syndrome achieved?

A: Genetic disorders result from chromosomal abnormalities like Down syndrome and Turner syndrome. A…

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: How and when does nondisjunction occur? What is the result of non-disjunction? In your own words

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

Q: What are the 3 types of Down syndrome?

A: Down syndrome is a kind of genetic disorder that results in developmental delays, intellectual…

Q: What is Down's syndrome? Give its symptoms and cause. Why is it that the chances of having a child…

A: Human genetic disorders are caused by the absence, excess, or abnormal arrangement of one or more…

Q: Explain why Down syndrome is more common in infants born to women older than 35 years of age?

A: A genetic disorder characterized by abnormal cell division in child resulting in extra (whole or…

Q: What causes Turner syndrome?

A: Sex Chromosome abnormalities causes turners syndrome. Persons with turners syndrome are…

Q: What is autosomal inheritance?

A: Autosomes are those chromosomes which control the character of our body not the sexual character. In…

Q: What is the female version of Turner syndrome?

A: Mendelian disorders like haemophilia, sickle- cell anemia, and phenylketonuria are due to the mutant…

Q: Are all froms of Down Syndrome due to non-disjunction?  Explain

A: There are three forms of Down's Syndrome- 1. Trisomy 21 2. Non-disjunction 3. Mosaicism

Q: What is inherited?

A: Inheritance is the process by which a cell or organism acquires the genetic information from the…

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: How is Down syndrome caused?

A: Human genetic disorders are caused due to the absence or excess or abnormal arrangement of one or…

Q: what are treatments for polycystic overy syndrome?

A: Polycystic ovary syndrome is the condition of ovary in which the follicles are solidified to form…

Q: What is polyembryony?

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

Q: What are chromosomal disorders?

A: The chromosomes are thread-like structure situated inside the nucleus of plant and animal cells.…

Q: Why the allele for Huntington disease is dominant?

A: Step 1 Huntington disease is an inherited disorder that causes the death of brain cells by the…

Q: Explain the concept of mendal's law of inheritence?

A: Gregor Mendel conducted experiments on pea plant (Pisum sativum) demonstrating the inheritance of…

Q: What is the most common chromosomal disorder?

A:

Q: What are various kinds of twins?

A: Pregnancy is also termed as gestation during which one or more offspring develop in the uterus of a…

Q: What is the cause of Down syndrome?

A: A mutation denotes the manipulation of sequence of the genetic material of a living organism that is…

Q: What is the maternal inheritance?

A: Genetics is the branch of biology that deals with inheritance and variation. A gene is a section of…

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: Is blood type an example of pleiotropy?

A: Pleiotropy is a condition in which a single gene controls multiple phenotype characteristics or…

Q: What are 3 disorders due to Nondisjunction?

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

Q: Give some examples for down syndrome

A: Genes are housed in chromosomes, which are structures. Numerical or structural chromosomal…

Q: What are affects when Nondisjunction occurs?

A: The separation of the sister chromatids or homologous chromosomes is one of the defined steps of…

Q: What are similarities between Jacob Syndrome and Patau Syndrome?

A: Jacob Syndrome is a chromosomal aberration caused by the non-disjunction of the Y chromosome. They…

Q: what are  chromosomal abnormalities??

A: Deoxyribonucleic acid (DNA) is a molecule composed of two polynucleotide chains. It coils around…

Q: Which inheritance is Uniparental?

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

Q: What is an analougous trait?

A: Analogous trait are characters developed by two organisms, from different ancestors. Here the…

Q: what are the types of down syndrome

A: Down syndrome is a condition in which a person has an extra chromosome. people with Down syndrome…

Q: explain what is Down syndrome?

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

Q: What does double homozygous mean?

A: The alternate form of gene is known as allele. Allele are of two types, namely dominant allele and…

Q: What are the various phenotypic changes in cri du chat syndrome ?

A: A syndrome is a medical condition in which a group of symptoms appears. These symptoms are generally…

Q: What is monosomy ?

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

Q: What is 47,XXX Syndrome ?

A: A syndrome is characterized by a collection of medical indications and symptoms that are related to…

Q: Are all forms of Down syndrome due to non-disjunction?​YES​​​ or NO​?

A: Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or…

Q: What is primary non disjunction?

A: During cell division, in anaphase stage when homologous chromosomes have failed to separate or…

Q: Differentiate a multifactorial disorder from a chromosomal disorder.

A: Multifactorial diseases are not confined and do not follow any specific pattern of single gene…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.