The reason why some mutations which are harmful do not get eliminated from the gene pool, is that
They have future survival value
They are recessive and carried by heterozygous individuals
They are dominant and show up more frequently
Genetic drift occurs because of a small population area
Ischihara chart is used to detect
The expression of genes for the production of milk in only females is a
Two offspring developed in the same uterus but from fertilization of two different ova are
The grafting between two identical twins is known as
Genes on same chromosome can be