Why do individuals with an excessive number of sex chromosomes often show minimum phenotypes?

Q: In organisms with a ZZ-ZW sex determining system, from whic of the following can a female inherit…

A: introduction The inheritance of certain genes is often found on a particular chromosome at the time…

Q: Give several examples of chromosome number disorders.

A: Genetic disorders are defects that are caused by any genetic mechanism like mendelian genes ,multi…

Q: Describe how nondisjunction results in aneuploidy disorders, and describe the syndrome/ symptoms/…

A: Nondisjunction means the failure of homologous chromosomes or sister chromatids to separate during…

Q: Why is an X chromosome needed for survival?

A: The sex chromosomes or allosomes are X and Y chromosomes which determine the biological sex of an…

Q: How many Barr bodies are contained within the nucleus of a person with Monosomy X? In the nucleus of…

A: Introduction:- The X chromosome is shared by both males and females. Female somatic cells do not…

Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: Two phenotypically unaffected parents produce two children with familial Down syndrome. Regarding…

A: A phenotype is the observable physical and functional traits of an organism which result from the…

Q: What are linked genes?  What is the difference between tightly-linked and loosely-linked genes?

A: Genes which get inherited In conjunction with other genes and are found on the same chromosome is…

Q: Why is it that so many of the sex-linked traits we talk about in humans are carried on X chromosomes…

A: Traits can be dominant, recessive, sex linked recessive or sex linked dominant. Dominance is the…

Q: Describe the Principles of Segregation and Independent Assortment in terms of Genetics. How do these…

A: The law of segregation describes how two alleles governing a single trait separates randomly during…

Q: aneuploidies in autosomal chromosomes likely to cause more severe phenotypes compared to…

A: Chromosomal abnormality or alteration is a change in the sequence of the chromosome. These…

Q: How does a chromosomal duplication occur?

A: When a part of chromosome is present in two copies or duplicated, it is known as duplication. This…

Q: In C. elegans, lon-2 and unc-2 are recessive mutations that are 8 map units apart on the X…

A: A map unit is defined as the distance between two linked gene pairs where 1% of the products of…

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…

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.