State True or False
(i) Chromosomal aberrations are commonly observed in cancer cells
(ii) Mutation is the only phenomenon that leads to variation in DNA.

Mutation which commonly observed in cancer cells is

Refer the given statements (i) Incomplete or mosaic inheritance is an example of pre-Mendelian concept of blending inheritance (ii) Test cross is a special type of back cross (iii) Chromosomal aberrations are commonly observed in cancer cells (iv) Thalassaemia is a Mendelian disorder Which of the above statements are correct ?

State true or false : (i) Juvenile phase can be known as vegetative phase in all plants. (ii) Mango is polycarpic plant.

State true or False : (i) Multiceiular organisms are immortal. (ii) Reproduction maintains continuity of species on earth surface

State true or false : (i) In the initial phase of absorbation of elements the ions are absorbed passively. (ii) Deficiency of manganese leads to inhibition of Ca translocation to shoot apex.

State True or False ? (i) A gamete carries only one factor of a character (ii) Starch synthesis in wrinkled seeded pea plants is most efficient (iii) Modified allele is always the recessive allele.

State true or false : (i) Sexual reproduction is always biparental (i) Sexual reproduction or may not be present in reproduction which produces variations (iii) Most common method of reproduction in lower plants is asexual one

State True or False : (i) The transfer of characters from parents to offspring is known as inheritance. (ii) A true breeding line shows stable trait inheritance and expression for several generations. (ii) In total Mendal selected 7 breeding pea plant verieties.

State true or false : (i) Unisexual flowers occur in china rose (ii) Monoecious condition in lower plants is absent.

State true or false: (i) Negative of an irrational number is irrational . (ii) The product of a non- zero rational number and an irrational number is a rational number.