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
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)

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Solution

(a) (i) and (ii)
New species may be formed if DNA undergoes significant changes in germ cells and chromosome number changes in the gamete.

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Q. Question 10
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.

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)

Question 10
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.

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)

Q. 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.

Q. New species may be formed if DNA in germs cells undergoes significant changes or chromosome number changes in the gametes.

Q. Select the statements that describe characteristics of genes :
(i) genes are specific sequence of bases in a DNA molecule
(ii) a gene does not code for proteins
(iii) in individuals of a given species, a specific gene is located on a particular chromosome
(iv) each chromosome has only one gene

(a) (i) and (ii)
(b) (i) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)

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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 (a) (i) and (ii) (b) (i) and (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iii)

(a) (i) and (ii) New species may be formed if DNA undergoes significant changes in germ cells and chromosome number changes in the gamete.

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
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)

(a) (i) and (ii)
New species may be formed if DNA undergoes significant changes in germ cells and chromosome number changes in the gamete.