What are idiograms?

Q: What are nondisjunction?

A: A sister chromatid is defined as the identical copies (chromatids) formed by the DNA replication of…

Q: What is fluctuation test?

A: Bacteria are microscopic single-celled organisms that thrive in diverse environmental conditions.…

Q: What is a varicosity

A: Varicosity is a dilated vein that mostly develops in legs.  The role of our veins is  to carry blood…

Q: Define pericentric inversion and paracentric inversion?

A: A chromosome rearrangement that is characterized by the breakage of a single chromosome followed by…

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 nondisjunction and the diseases?

A: Nondisjunction is a chromosomal disorder.

Q: What is the phenotype?

A: Inheritance patterns are of different type’s   Mendelian inheritance, incomplete dominance,…

Q: What are continuous characteristics and how do they arise?

A: The traits that display a broad range of expression are called continuous traits. They are also…

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: What is Sanger method ?

A: The Sanger Sequencing technique is a method of DNA sequencing. It was first developed by Frederick…

Q: What are pyramids of numbers?

A: When the connections or relationships between different trophic levels in an ecosystem expressed…

Q: What do the terms genotype, phenotype, dominant, recessive, homozygous, and heterozygous mean?

A: Genotype : is an organism's complete set of genetic material. Phenotype: is the set of observable…

Q: How are twin studies of concordance and discordance related to pseudoalleles?

A: Genetics is the study of the functioning and main codes of variation and heredity. Inheritance is…

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 is a Pericentric inversion?

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

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 non Mendelian inheritance?

A: DNA is the universal genetic material. Genes located in nuclear chromosomes follow Mendelian…

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: How is Down syndrome caused?

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

Q: Explain down's syndrome?

A: The process of gamete formation involves meiotic division that results in cutting down the…

Q: What are alleles of a gene?

A: A gene can be defined as the unit of heredity and are made up of DNA. These genes are responsible…

Q: What is pleiotropy?

A: Pleiotropy refers to the expression of multiple traits by a single gene. These expressed traits may…

Q: What causes nondisjunction?

A: Chromosome is the package of densely packed chromatin fibres with DNA and histone proteins. In…

Q: What is a down syndrome?

A: Humans are diploid organisms,i.e., humans will have two copies for each chromosome in the cells. One…

Q: Explain mendelian disorders?

A: Mendelian inheritance types are autosomal dominant, autosomal recessive, X-linked dominant and…

Q: What are intermediate categories?

A: Taxonomy or systematics is a branch of biology in which the organisms are classified into categories…

Q: What is crossing over frequency?

A: Crossing over occurs during Prophase (diplotene stage) of meiosis-I and plays a key role in genetic…

Q: What are mendelian disorders?

A: A Mendelian trait is one that is controlled by a single locus in an inheritance pattern. In such…

Q: Which might you observe directly: the genotype or the phenotype?

A: Traits are the features of a living organism that are regulated by genes.

Q: What are Wild type allele and Mutant allele?

A: Alleles occur on the same locus in the homologous chromosomes of an individual and they are…

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 two things influence an individual's phenotype?

A:

Q: What is a reciprocal cross?

A: A genetic cross is the process of mating of two individuals which describes the comparison of their…

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: What is the third name in trinomial nomenclature?

A: Nomenclature is a system of forming names in a particular field. In biology it is used to give names…

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: Difference between klinefilter syndrome and turner's syndrome?

A: Any gain or loss in the number of chromosomes number, or any change in the structure of the…

Q: What is the role of chance in heredity?

A: Heredity or inheritance is referred to as the passing or the transmission of characters from one…

Q: What is pleiotropy in biology?

A: The traits are the character that is encoded by a gene. For example- eye color is a phenotypic…

Q: What is a test cross?

A: Cross  A cross is the mating of 2 different parents towards formation of offsprings. There are…

Q: What are the answers in number 4,5,6?

A: Enzymes are a class of protein except for ribozymes that act as biological catalysts or…

Q: What is primary non disjunction?

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

Q: What are some examples of Nondisjunction?

A: Non-disjunction refers to failure of the two members of a chromosome pair to segregate from one…

Spheres of physical activity

The spheres of physical activity experience include aspects of everyday life where physical activity is important. In general, the spheres recognize various purposes of physical activity in different contexts. The spheres of physical activity provide a broad basis for assessing the significance and prevalence of physical activity. There are seven spheres of physical activity experience.