What is Locus heterogeneity?

Q: What are nondisjunction?

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

Q: What is a homologous gene?

A: A gene is a sequence of nucleotides in RNA or DNA. It encodes the synthesis of gene product, either…

Q: At which level is incomplete dominance more likely to beobserved—at the molecular/cellular level or…

A: Incomplete dominance is a phenomenon in which neither of the two alleles is completely dominant in a…

Q: How does gene duplication occur?

A: Gene duplication is the process occurs when an extra copy of gene is produced in the genome of the…

Q: What is geneticequilibrium?

A: An allele is an alternate version of a gene as a gene usually two copies of a gene on due to 2…

Q: Describe some syndromes that result from chromosomal nondisjunction?

A: Nondisjunction of chromosome: - During cell division, it is the failure of separation of homologous…

Q: What is genetic linkage?

A: During the meiosis process of sexual reproduction, DNA sequences that are similar together on a…

Q: What effects of heterozygosity for a deletion?

A: In a spontaneous deletion, 2 chromosomes break to remove the intervening segments. By deletion 1 or…

Q: What are Possible Dominance Relations in case of antimorphic mutations?

A: Mutations can be classified depending on the behavior of various mutations in different genetic…

Q: What is genetic mosaicism and how does it arise?

A: The non-disjunction of chromosomes during meiosis and mitosis results in cells having different…

Q: What are Categories of Genetic Variants?

A: The difference in DNA sequence between organisms of a population is called genetic variation. These…

Q: What is   Heteroplasmy?

A: The genome represents the genetic material in an organism having a set of chromosomes which is…

Q: What are haploidentical paternal regions?

A: Haploidentical transplant is a type of allogeneic transplant. It is a half matched stem cell…

Q: What is random (independent) assortment and when does it occur?

A: Gene is the specific sequence of nucleotide in deoxyribonucleic acid (DNA) or ribonucleic acid (RNA)…

Q: What is the principle of segregation? Why is it important?

A: The transmission of genetic characters from parents to offspring is known as Heredity.

Q: What is mosaicism ?

A: Genetics is a science of study of genes. It involves the identification of specific genes for…

Q: What is a segmental duplication?

A: DNA is the genetic material present within the nucleus in the cell. It maintains the heredity of the…

Q: what are 9 Phenotypic consequences of deletion andduplication heterozygosity.?

A: Deletion and duplication are the processes which results in chromosomal abnormalities. These are…

Q: What is meant by “patterning” during heterocystformation?

A: Heterocyst are specialized cells involved in nitrogen fixation in Cyanobacteria such as Anabaena and…

Q: What are linkage and recombination of chromosomal theory of inheritence?

A: The chromosomes are the genetic material present in the nucleus of the cell which is a condensed…

Q: What are multiples allels?

A: Gregor Mendel knew how to keep things basic. In Mendel's work on pea plants, every gene came in only…

Q: What is a haplotype? How do different haplotypes arise?

A: A cell with one set of chromosomes is called haploid. This term can also be used to refer the number…

Q: what is  a reductional division.?

A: Introduction  Cytology deals with the study of cell such as cell morphology, physiology etc. As we…

Q: How does Nondisjunction affect humans?

A: Cell division is a process by which a cell divides into two or four daughter cells. The cell…

Q: What does genetic heterogeneity mean?

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

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 occurs during duplication chromosomal mutation?

A: Mutations are defined as sudden heritable change which alters the expression of a gene.

Q: Which individuals can be termed as clones?

A: DNA is the genetic material in most living organisms. It is the information hub that contains…

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 Robertsonian translocation Down syndrome?

A: Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it…

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 are the possible effects of chromosomal rearrangements?

A: In genetics, a chromosomal rearrangement or Any alternation in the sequence of nucleotide in the…

Q: What is independent assortment?

A: The law of inheritance was proposed by Gregor Mendel in 1865 using Pisum sativum (garden peas). From…

Q: What is Comorbidity ?

A: A disease is a disorder that affects the structure or function of all or part of an organism and is…

Q: What is diploid genome ?

A: The examination of a person's entire genome, along with how their genes communicate with one another…

Q: What is chromosomal mapping?

A: A chromosome contains all of the genetic material of an organism. Almost all the eukaryotic…

Q: What is heterozygous variant?

A: The term heterozygous variant belongs to a subdivision of biology, genetics. Genetics is the study…

Q: What is the law of the superposition?

A: Answer - The law of superposition is a law of stratigraphy science

Q: What is chromosome theory of inheritence?

A: Chromosomes are thread-like structures made up of chromatin.

Q: How Chromosomal Rearrangements are Caused?

A: Numerous structural rearrangements in chromosomes have been characterised, inversions and…

Q: What is molecular homoplasy?

A: Evolution is the process of change in characteristics of an organism that are a result of the…

Q: What is mosaicism? How is it produced?

A: Mosaicism -No two pieces of a mosaic can be exactly same because they are made of different stones.…

Q: What are the four types of chromosomal rearrangements?

A: Chromosomal rearrangements are the mutations in the chromosomes that alter the structures of…

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.