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In peas, yellow seed colour is dominant over green seed colour. Rechal decided to transfer pollen grain from the flower of 2 breeding yellow seeded plant to green seeded plant. Predict the result of Recheals activity in her garden.

Biology

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Step-by-step solution

4 steps
  1. Tambua jeni za wazazi.

    Rangi ya njano ya mbegu ni dominant, kwa hivyo tutatumia herufi kubwa YY kuiwakilisha.
    Rangi ya kijani ya mbegu ni recessive, kwa hivyo tutatumia herufi ndogo yy kuiwakilisha.
    Mmea wa njano safi (true-breeding yellow-seeded plant) una jeni YYYY.
    Mmea wa kijani (green-seeded plant) una jeni yyyy.

  2. Tambua gameti zinazozalishwa na kila mzazi.

    Mmea wa YYYY utazalisha gameti zenye aleli YY.
    Mmea wa yyyy utazalisha gameti zenye aleli yy.

  3. Fanya msalaba wa kijeni (genetic cross).

    Msalaba kati ya wazazi YYYY na yyyy utazalisha watoto wa kizazi cha kwanza (F1 generation).

    GametiYYyYyYyyYyYy\begin{array}{|c|c|c|} \hline \text{Gameti} & Y & Y \\ \hline y & Yy & Yy \\ \hline y & Yy & Yy \\ \hline \end{array}

    Jeni zote za watoto zitakuwa YyYy.

  4. Tabiri matokeo ya fenotipu.

    Kwa kuwa aleli YY (njano) ni dominant juu ya aleli yy (kijani), mimea yote yenye jeni YyYy itakuwa na mbegu za njano.

    Matokeo ya shughuli ya Recheal ni kwamba mimea yote itakayozalishwa itakuwa na mbegu za rangi ya njano.

    Mimea yote itazalisha mbegu za njano.

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