Question

(a)You are given tall pea plants with yellow seeds whose genotypes are unknown. How would you find the genotype of theses plants? Exaplain with the help of cross.

Answer 1

(a) Genotype of an unknown pea plant with dominant pheontype may be tested with the help of a test cross. A tall pea plant with yellow seeds may have genotypes TT YY or Tt Yy.
`{:("Option : I", "Option: II"),( "If unknown plant has T TYY, its test cross with Homozygous recesive pea plant ( t t y y) will result all "F_(2)" plants- Tall and yellow seeds:","If unknow plant has genotype Tt Yy, its test cross with Homozygous recessive pea plant (tt yy) will result a ratio of 1:1:1:1 as follows:"):} `
(b) a= The progeny resembled both parents, b=- Dominance,= c The progeny was in- between.