New species may be formed if :
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place

New species may be formed if: ( 1 ) DNA undergoes significant changes in germ cells. (2) there is no change in the genetic material. (3)mating does not take place. a.(1) and (2) b.(1) c.( 2) and (3) d.(1 ), (2) and (3)

During differentiation, the cells undergo structural changes in their A) cell wall B) genetic material C) protoplasm D) unit membranes

(i) Name the enzyme that catalyses the trancription of hnRNA. (ii) Why does the hnRNA need to undergo changes? List the changes hnRNA undergoes and where in the cell such changes take place?

(i) Name the enzyme that catalysis the transcription of hnRNA. (ii) Why does the hnRNA need to undergo changes? List the changes hnRNA undergoes and where in the cell such changes take place?

Accourding to weismann prediction , every organism undergoes two kinds of cell divisions. In mitosis, there is no change in chromosomal number (2n) and in Meiosis, chromosomal number is reduced to half (n). (ii) In which cells, Meiosis takes place ?

Which of the following changes take place during roasting ? (i) Impurities are removed as they form volatile oxides. (ii) Ore is converted into their volatile oxides. (iii) Changes like oxidation , chlorination, etc. take place

Which of the following changes take place during roasting ? (i) Impurities are removed as they form volatile oxides. (ii) Ore is converted into their volatile oxides. (iii) Changes like oxidation , chlorination, etc. take place

(i) Name the enzyme that catalyses the transcription of hnRNA. (ii) Why does the hnRNA need to undergo changes ? List the changes hnRNA undergoes and where in the cell such changes take place.