Gene flow is the migration of genes from one population to another. Gene flow changes the allele frequencies of a population. Gene flow within a... View Article
There are structural differences between RNA and DNA. RNA is single-stranded and contains a ribose sugar which makes it more unstable and prone... View Article
The child inherits genes for blood type from parents. Each parent gives one of the gene pairs. ABO blood group is determined by the gene I. It... View Article
ABO blood group type is determined by the gene I. It has three variant alleles, i.e. IA, IB and i. IA and IB produce surface antigens A and B,... View Article
AB blood group has both the surface antigens on RBCs. The genotype for the AB blood group is IAIB, so if both husband and wife have AB blood... View Article
Humans are closely related to chimpanzees and bonobos. 98.7% of human DNA is similar to them. The common ancestor of humans, bonobos and... View Article
Yes, the AB blood group is found to be the least prevalent in India. Only ~7% of people are found to have AB blood type. AB blood group has... View Article
Inbreeding refers to the mating of closely related animals of the same breed. Inbreeding is done to develop purelines. It increases the... View Article
ABO blood grouping is controlled by gene ‘I’, which has three variants, viz., IA, IB, and i. IA and IB are codominant over allele i. Blood type O... View Article
Blood type does not change in the lifespan of a person under normal circumstances. In some conditions such as cancer, infections or autoimmune... View Article
O positive can donate blood to all the Rh-positive blood types, i.e. A+, B+, AB+ and O+. O negative can donate blood to all the blood types so it... View Article
The O+ blood type does not have A or B antigen on the surface of RBCs. The genotype of the O blood group is ‘ii’. They are homozygous for the... View Article
AB positive blood group can donate blood only to people with AB+ blood type. They can receive any blood type so they are known as universal... View Article
Having two blood types is a rare condition known as chimerism, when a person has two sets of cells from two sources. It may occur at the time of... View Article
No, in fact O positive blood group is the most common blood type. AB negative blood type is the rarest blood type. Further reading: Polygenic... View Article
No, only males are affected by Klinefelter’s syndrome. They have an extra X chromosome other than normal XY, i.e. their karyotype is XXY. They... View Article
Population is the smallest biological unit that can undergo evolution. Population refers to the group of individuals of a particular species... View Article
Inbreeding is a type of breeding in animal husbandry. Inbreeding is bad for animals because the continuous inbreeding leads to reduced fertility... View Article
The Hardy-Weinberg equation is a mathematical equation used to calculate the genetic variation of a population at equilibrium. Explore More:... View Article
