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

Q: What is Biparental inheritance?

A: Genes carry coded genetic information in the form of specific nucleotide sequences. This specific…

Q: What is sex linked inheritance and why is the pattern of inheritance different for males vs females?

A: Sex linked inheritance is the sex-specific pattern of inheritance and presentation when a particular…

Q: What are the inheritable patterns of a dominant and recessive lethal allele? Is Huntington Disease…

A: A large proportion of genes in an individual's genome are very important for survival for life.

Q: List the causes of congenital disorders.

A: An abnormality in the child's structure or function at the time of birth despite the cause that…

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 are the objective inheritance patterns disorders?

A: In a biological sense, inheritance is the process by which genes and other hereditary properties are…

Q: How can wolf hirschhorn syndrome progress or change?

A: Many cases of Wolf-Hirschhorn syndrome (WHS) (about 50-60%) are not inherited from a parent and are…

Q: Define partial dominance?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: causes a deletion to occur during early fetal development.? is it an alteration

A: If there is deletion or Insertion of one or a few nucleotides in the DNA molecule, then it will…

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 is meant by Trisomy 21 ?

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

Q: Define about the TRED in fragile X syndrome ?

A: Fragile X syndrome :  It is a genetic disorder which occurs as a result of a mutation in FMR1 gene…

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: Explain the cause of monogenic diseases ?

A: Genes are the functional unit of heredity. It contains information that is transferred from one…

Q: How do complete dominance, incomplete dominance, and codominance differ?

A: The variants of a specific gene are called its alleles. In a diploid organism, there are two alleles…

Q: What pattern of inheritance do dominant traits show?

A: There are two types of chromosomes present in human: autosomes and sex chromosomes. The transmission…

Q: What is the genotype of carrier females, affected males, unaffected males, and unaffected females?

A: The word "genotype" refers to the genetic makeup of a life form as such, it portrays a living…

Q: What is an example of incomplete dominance?

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

Q: What are the biological terms for fraternal twins and identical twins?

A: Dizygotic twins are the biological term for fraternal twins.  In this fertilization case, two ova…

Q: What causes Biparental inheritance?

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

Q: Distinguish among Klinefelter, Down, and Turner syndromes. Which syndromes are found in both sexes?

A: Introduction A genetic condition is an illness caused in part or entirely by a deviation from the…

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: How do we know that monozygotic twins are not identical genotypically as adults?

A: An embryo is a stage of human development that is created by the union of eggs and sperm. Organs and…

Q: What are the phenotype and genotype of the female and male parent?

A: The genotype is a collection of genes in DNA that are responsible for a specific trait or set of…

Q: What characteristics are exhibited by a Y-linked trait?

A: Genetic material is any material of animal, microbial, or plants, or other origin that carries…