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biology test 3

Authored by Muzaffar Annaev

Biology

University

Used 2+ times

biology test 3
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Qovoqni oq va sariq gullarini chatishtirish natijasida F2 3/4 avlod oq 1/4 avlod sariq mevasi qovoq olindi. Ota-onalarning genotipini aniqlang?

Aa x Aa
AA x aa
Aa x AA
Aa x aa

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Media Image

Rasmda qanday jarayon ifodalangan?

insertsiya
deletsiya
inversiya
transversiya

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. Monogibrid chatishtirishda ikkinchi avlodda fenotip bo'yicha belgilar nisbati?

3:1
1:1
9:3:3:1
13:3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. Odamda polidaktiliya dominant belgi sifatida irsiylanadi. Normal barmoqli ayol, geterozigota olti barmoqli erkakka turmushga chiqsa, ularning farzandlarining barmoqlari qanday bo'ladi?

50 % bolalar olti barmoqli
Barmoqlari normal
Hammasi noto'g'ri
25% bolalar olti barmoqli

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. Tahliliy chatishtirish natijasida olingan avlodlarning biri retsessiv bo'lib chiqdi. Ota-onalarning genotipini aniqlang:

Aa va aa
AA va Aa
aa va aa
AA va AA

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. Oq mevali oshqovoqlarni o’zaro chatishtirganda 75% oq va 25% sariq mevali o'simliklar paydo bo'ldi. Ota-onalarning genotipini aniqlang?

Aa x Aa
Aa x AA
Aa x aa
aa x aa

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. Qora sichqon o’rg'ochisini jigarrang erkagi bilan chatishtirganda 29 ta qora va 27 ta jigarrang bolalar tug'ildi. Ota-onalarining genotipini aniqlang?

Aa x aa
Aa x AA
AA x AA
aa x aa

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