When different alleles of the same gene are present on an individual, the individual is a
Heterozygous
Diploid
Homozygous
mosaic
Fraternal twins are produced when
Which of the following trait shows transmission from carrier female to male progeny?
In a cross between white-flowered parents, $F_1$ progeny was uniformly purple-flowered. The $F_2$ progeny showed a phenotypic ratio $9 : 7$ between purple-flowered and white-flowered plants. The above result indicates that the flower colour is controlled by
Barr bodies and drumsticks are of what significance to genetists and biologists
Continuous variations are attributed to