Yes, genetic code is a triplet having a trinucleotide sequence. Genetic code deciphers the 20 amino acids present in proteins in the language of... View Article
Heredity refers to the passing on of traits from parents to offspring. Genes are the basic unit of heredity. Genes are present on DNA and are... View Article
Inbreeding refers to the mating of closely related animals of the same breed. Inbreeding helps in the accumulation of superior genes and... View Article
Codon is a trinucleotide sequence present on DNA and complementary sequence present on mRNA transcript, which codes for a specific amino acid at... View Article
According to Darwin, natural selection is the mechanism by which evolution occurs over time. Heritable traits, which make an individual better... View Article
Lactose is a substrate for beta-galactosidase enzyme as well as acts as an inducer for lac operon. As an inducer, it inactivates repressor by its... View Article
XXY syndrome is also referred to as Klinefelter syndrome. Here males are born with an extra X chromosome. It usually occurs due to nondisjunction... View Article
Codominance is the condition where both alleles are equally expressed in a phenotype. ABO blood group inheritance shows codominance. The gene... View Article
Humans first evolved from Africa. Early hominids existed around 3-5 mya and modern humans or Homo sapiens evolved around 200,000 years ago in... View Article
A recent example of human evolution is the resistance to malaria disease. The deformed RBCs in the sickle cell anaemia are less prone to... View Article
Mutations are a change in the nucleotide sequence in the DNA. Mutations are the primary cause of genetic variation. Mutations can be harmful and... View Article
Operator is the regulatory region overlapping the promoter of the lac operon. Repressor protein binds to the operator and inhibits binding of RNA... View Article
Genetic code refers to the trinucleotide sequence present on mRNA transcript, which codes for a specific amino acid. Genetic code is nearly... View Article
The fundamental unit of evolution is the population. Evolution refers to the change in the inherited characteristics or gene pool of a population... View Article
Mutation is the change of nucleotide sequence in DNA due to various factors. It leads to variation and is one of the major driving forces of... View Article
Migration is the movement of genes and also referred to as gene flow, which changes the allele frequencies of a population. Genetic drift is the... View Article
The term genetic drift was coined by Sewall Wright. It refers to the random fluctuations in allele frequencies of a population occurring by... View Article
Haemophilia is a blood clotting disorder due to deficiency of a clotting factor. It is of three types with each related to different clotting... View Article
Traits, which do not segregate according to Mendel’s law of segregation or do not follow the law of dominance, show Non-Mendelian inheritance.... View Article
Heredity is the passing on of traits from one generation to another. Heritable traits are passed on from parents to their offspring via DNA.... View Article
