Question

Homwork crossing over ytftert yf er yf w yf ar

how to do this crossing over ?

Answer 1

Crossing over is the phenomenon of exchanging set of chromosomes or chromosome segments with sister chromatids during meiosis. It results in production of gametes and due to which variations are possible between population or individuals.

How to perform crossing over between the given parents are shown in the images below :

Crossing Over in = P2 y F cv. y FcV make ametes from Step 1 each parent, No cross single of crors over single i crossover Double crossover. over yn yll y A ya gta ya All El FA EL AL F cul cu cut will all it Camotes Resulting from @ after Crossing over.. F cv stoo LV y F cv - 8 gametes from and a gametes of Parent (P2). Gamotes Parent (Pi). same type from

Eltep 2 - Cross gametes from Parent 1 and P2) yt F* cv ytor de tror E CV DIZAT D CV y for Single F C & CROSS y Fur 08 ft cut LOVER. 1301 cv y f aut y f. F C single F C r ft cv {cron over F су e urt - cr Double I FC ft cr Terors w ADA

A 3 point - crows Results in the production of a phenotypes and a total of 64 рлари ig. crossing Over of or recombination to ② R % for y + Ft { where yt and ft are separated ? R%= c + d + gth & 100 Total ② R % foro f t cut {ft and cut separated} R%= e + f + gth, - x 100. Total ① R % for yt ert {y+ and cut separated} R% = c + d + e + f x 100 Total Note & a, b, c, d, e, figih represent the number of progenies produced for particular}. Û zo find separation of yt and ft and similar look at the progenies and see those which have pair as yt and for y and ft. They will be the cross over and you will get R% from there. Limilar in other cases too.

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