Genetics is the branch of biology that studies genes, heredity, and variation in living organisms. It explores how traits are passed from parents to offspring through genes, which are segments of DNA that carry instructions for building and maintaining an organism.
Key areas in genetics include:
What is Codominance? Definition of Codominance Codominance is a genetic scenario where two different alleles at a locus are both fully expressed in a heterozygote, resulting in a phenotype that displays traits of both alleles simultaneously. What are the Symbolism for codominant alleles? Examples of Codominance Codominance in Animals Codominance in Humans Codominance in Plants … Read more
What is Non-Mendelian Inheritance? Types of Non-Mendelian Inheritance Non-Mendelian inheritance patterns reveal a range of genetic mechanisms that extend beyond Mendel’s classical laws of inheritance. These patterns involve complex interactions between genes and their expression. The following are key types of non-Mendelian inheritance:
What is Mendel’s Law of Segregation? Mendel’s Law of Segregation Definition Mendel’s Law of Segregation states that alleles for a trait separate during gamete formation, ensuring each gamete carries only one allele, randomly inherited from the parent. What is segregation? Principle of Segregation and its Importance Characteristics of Mendel’s Law of Segregation Examples of Mendel’s … Read more
What is Mendel’s Law of Independent Assortment? Definition of Mendel’s Law of Independent Assortment Mendel’s Law of Independent Assortment states that genes for different traits are distributed to gametes independently of one another, meaning the inheritance of one trait does not affect the inheritance of another. Characteristics of Mendel’s Law of Independent Assortment Examples of … Read more
What is Mendel’s Law of Dominance? Mendel’s Law of Dominance is one of the foundational principles of genetics, formulated by Gregor Mendel through his experiments with pea plants. It asserts that when two homozygous organisms, each possessing contrasting traits for a specific character, are crossed, only one of the traits will appear in the first … Read more
In the 1860s, Gregor Mendel, an Austrian monk, revolutionized the field of genetics with his foundational work on inheritance patterns. His experiments with pea plants led to the development of Mendelian inheritance, which is based on the concept that heredity operates through discrete units called genes. These genes, according to Mendel, act independently within an … Read more
What is Mendelian Inheritance/Mendel’s Laws of Inheritance? Genetics Terminology of Mendelian inheritance These terms clarify how genes operate, how traits are inherited, and the relationship between genetic information and observable characteristics. Download the Cheat sheet pdf Mendel’s Experiment Gregor Mendel’s experiments between 1856 and 1863 laid the foundation for our understanding of genetic inheritance. Using … Read more
HSP heavy strand promoter LSP light strand promoter MGME1 mitochondrial genome maintenance exonuclease 1 mtSSB mitochondrial single-stranded DNA-binding protein NCR noncoding region TAS termination-associated sequence What is Mitochondrial DNA (mtDNA)? Structure of Mitochondrial DNA (mtDNA) General Features of the Mitochondrial Genome Factors for mtDNA replication Mitochondrial DNA (mtDNA) replication is a critical process distinct from … Read more
What is Karyotyping? Karyotyping: What’s the Deal? Definition of Karyotyping Karyotyping is a diagnostic technique that examines an individual’s chromosomes to identify genetic abnormalities, structural changes, and chromosome number variations. What is a karyotype? Karyotyping Procedure/Steps of Karyotyping Staining and banding Staining and Banding techniques used in karyotyping: Applications of Karyotyping Medical Genetics: Prenatal Diagnostics: … Read more
What is The Wobble Hypothesis? The Wobble Hypothesis, proposed by Francis Crick in 1966, provides an explanation for the degeneracy of the genetic code. Degeneracy refers to the fact that multiple codons can code for the same amino acid. According to the Wobble Hypothesis, the precise pairing between the bases of the codon and the … Read more
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