X-rays

Gamma rays

Alpha rays

UV rays

Sharbathi Sonora variety

Aruna variety

Reimei variety

Erectiferm variety

T. H. Morgan

Hugo de Vries

Alfred Sturtevant

Sutton and Boveri

66%

52%

59%

49%

\(\frac { No.ofoffsprings }{ No.ofrecombinants } \times 100\)

\(\frac { No.of\ recombinants }{ No.ofparentalstrains } \times 100\)

\(\frac { No.ofrecombinants }{ No.ofoffsprings } \times 100\)

\(\frac { No.ofoffsprings }{ No.ofparentalstrains } \times 100\)

i and iv

ii and i

ii and iii

All the above

Leptotene stage of prophase I

Zygotene stage of prophase I

Diplotene stage of prophase I

Pachytene stage of prophase I

Sister chromatids of non-homologous chromosomes

Non-sister chromatids of non- homologous chromosomes

Non-sister chromatids of homologous chromosomes

Sister chromatids of homologous chromosomes

Tetrad stage ~ Synapsis ~ Bivalent stage ~ cross over

Syndesis ~ Tetrad ~ Crossing over ~ Terminalisation

Terminalisation ~ Tetrad ~ Bivalent ~ Cross over

Cross over ~ Bivalent ~ Tetrad ~ Terminalisation

Drosophila

Maize

Neurospora

Lathyrus odoratus

G and H

J, K and L

G and B

A and B

1226

1622

1262

2126

A and M

Sand Y

M and Z

A and Y

Somatic cells of organisms are derived from zygote by repeated meiosis.

Chromosomes retain their structural uniqueness throughout the life of an organism.

Mendelian factors are located in chromosomes

Sutton and Boveri independently proposed the theory.

i and iv

i, ii and iv

i, ii and iii

ii, iii and iv