1.

Fill in the following blanks with suitable words : (a) Genes always work in ............ . (b) In pea plants , the gene for dwarfness is ........... whereas that for tallness is ............. . (c) Most people have ....... earlobes but some have ....... earlobes. (d) A human gamete contains ........ chromosomes whereas a normal body cell has ....... chromosomes in it. (e) All races of man have ...... blood groups. (f) The ....... chromosomes for a ........ are XX whereas that for a .......... are XY.

Answer»

Fill in the following blanks with suitable words :

(a) Genes always work in ............ .

(b) In pea plants , the gene for dwarfness is ........... whereas that for tallness is ............. .

(c) Most people have ....... earlobes but some have ....... earlobes.

(d) A human gamete contains ........ chromosomes whereas a normal body cell has ....... chromosomes in it.

(e) All races of man have ...... blood groups.

(f) The ....... chromosomes for a ........ are XX whereas that for a .......... are XY.



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