What are alleles?

Q: Which are some of the Most Common Single-Gene Traits in Humans?

A: Genetics is the branch of biology that studies genes, inheritance, and the genome in living…

Q: What is an allele is lethal only under certain conditions?

A: Lethal alleles as the term suggests are the death-causing alleles and occur due to mutation.  The…

Q: What is genomic reduction?

A: The genome size (C-value) is defined as the amount of deoxyribonucleic acid (DNA) in a haploid…

Q: How do geneticists know whether a particular trait is caused by the alleles of one gene or by two…

A: A gene is a stretch of nucleotides present in the DNA. DNA or deoxyribonucleic acid is a polymer of…

Q: How do genes determine the traits of an organism?

A: The gene is the genetic code's most fundamental physical and functional unit. The stuff that makes…

Q: What is the founder effect?

A: Genetic drift is the "random change in the allele frequencies as a result of chance due to sampling…

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: Which gene  is inherited from the mother only?

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: Why does it take longer to eliminate a recessive allele than a dominant allele?

A: Genes are the hereditary unit of an organism that gets transferred from the parent to the offspring.…

Q: What is an area of genetics that analyzes differences among individuals?

A: Introduction  In the population there is a great variation present in the genetic information of any…

Q: Which is the most common genetic disease?

A: The genetic disease refers to the type of disease that is caused by abnormalities in the genome.

Q: What is an example of a lethal allele?

A: Alleles that cause an organism to die are called lethal alleles. The genes which result in viability…

Q: Who is known as recessive lethal allele?

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: What are three similarities and three differences between dominant alleles and recessive alleles?

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: What is the difference in the studied skin color gene between dark skinned and light skinned people?

A: Human skin color can range from the darkest brown to the lightest hues. Differences in skin color…

Q: What is required in the genotype of an individual to show a recessive trait?

A: Genotype  It is defined as the reference to the alleles (variants of the gene) an individual carries…

Q: Why is this factor essential for the dominant allele to “take over” the gene pool?

A: Discoverers of this genetic equilibrium (Hardy) developed this HW equation to show that the dominant…

Q: What is the percentage of the total number of gene copies the allele accounts for?

A: Step 1 Allele frequency refers to how common an allele is in a population. Allele frequency can be…

Q: What is Prenatal genetic diagnosis ?

A: Prenatal diagnosis involves non-invasive and invasive techniques. The non-invasive technique…

Q: What are three common inheritance patterns for human monogenic diseases?

A: According to the question, we have to provide the name of three common inheritance patterns for…

Q: Why are most genetic diseases caused by recessive alleles?

A: Recessive alleles disorder:-

Q: What is the difference between homozygous and heterozygous alleles?

A: The homozygous and heterozygous genotype is essential for determining the characteristics whether it…

Q: What is non Mendelian inheritance?

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

Q: What is a genotype? Whatis the difference betweengenotype and phenotype?

A: Gene is the basic component of heredity. It is the functional unit of life as it contains all the…

Q: If an infectious disease was transmitted from the maternal parent to the offspring through the egg,…

A: The cytoplasmic inheritance is a kind of non-Mendelian inheritance. In such type of inheritance, a…

Q: Which gene  is inherited from the father only?

A: A gene is a stretch of nucleotides present in the DNA molecule. It encodes information for the…

Q: What is the difference between a locus and an allele? What is the difference between genotype and…

A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…

Q: What is the difference between dominant and recessive trait?

A: A gene is the basic physical and functional unit of heredity and is composed of DNA(deoxyribonucleic…

Q: What are outbreeding devices?

A: Plants are multicellular organisms in the kingdom Plantae. It uses the process of photosynthesis to…

Q: How do polymorphisms appear on a DNA fingerprint?

A: in our DNA we have multiple non coding regions that are made of highly repetitive sequences that are…

Q: What is the role of genes and chromosomes in the process of inheriting a specific trait?

A: Chromosome contains gene and Genes basically have the genetic information which get inherited from…

Q: What are the possible causes of genetic variations? Give specific examples.

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

Q: How are karyotypes used?

A: Karyotype is the collection of chromosomes which is examined for certain purposes. Chromosomes…

Q: How many DNA markers are there?

A: DNA or genetic marker is a DNA sequence or gene with a known location on the chromosome that is used…

Q: What is the genotype of an organism?

A: An organism’s genetic makeup is called its genotype, and it reflects all of the alleles, or form of…

Q: What are some examples of non mendelian inherittance diseases?

A: According to the Mendelian inheritance the characteristics of an individual is determine by the…

Q: What is meant by the term'breed'?

A: Animal husbandry is the branch of science of rearing, caring, feeding, breeding, improvement and…

Q: What are Hypomorphic alleles?

A: An allele is a variant form of a given gene. It represents two or more variant forms of a gene…

Q: What are idiograms?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: What is meant by Gene pool?

A: Gene constitutes of DNA and contains all important information of human being. It is the smallest…

Q: Which allele is an example of a loss-of-function allele?

A: The mutation of a gene or allele can produce mutant allelic forms that either produce a reduced…

Q: How do orthologous genes arise?

A:

Q: Why are the concepts of variable expressivity, incomplete penetrance, and delayed age of onset so…

A: Hereditary linkages explain how a genetic condition is passed down through the generations in a…

Q: If identical twins share 100% of the same genes, why do they have different fingerprints?

A: There are two kinds of twins namely the monozygotic twins and the dizygotic twins. Identical twins…

Q: What is the most common autosomal recessive disease?

A: Autosomal recessive disease refers to the type of disease that can be passed down through families.…

Q: What is an allele?

A: Genes are basic units of inheritance. Gene is  a specific sequence of DNA which encodes specific…

Q: If our DNA contains all the information about who we are, how can something that does not involve…

A: DNA is versatile and a very complex molecule , even more complex is the regulation of expression of…

Q: What is a recessive gene?

A: Gene is the fundamental unit of heredity. Alleles are contrasting traits of a gene.

Q: What is the genetic basis for human variation?

A: Genetic variations refer to the differences present in the DNA of different members of a species.…

Q: Which type of mutation is responsible for new variations of a trait?

A: Any alteration in the sequence of DNA of a gene can cause changes in the resulting protein in such a…

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.