MACHINE DESIGN QUIZ

When do kinetochore microtubules pull chromosomes towards opposite spindle poles?

In anaphase A

In anaphase B

In telophase

In metaphase

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Which of the following transposable elements are not found in plants?

All are found

Tam3

L1

Ac

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A plasmid used to introduce BT toxin into a plant cell

carries an antibiotic resistance gene that makes the plant resistant to antibiotics

is toxic for the plant cell

causes the plant to produce opines

carries a bacterial gene with a plant promoter

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The homologous chromosomes follow the process of synopsis in the

zygotene

diplotene

pachytene

leptotene

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What is the approximate size (in kb) of the melon mitochondrial genome?

2400 kilobase

600 kilobase

1200 kilobase

3000 kilobase

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In the meiotic cell divison in daughter cells are produced by two successive division in which

both divisions are reductional

first division is reductional and second is equational

both divisions are equational

first division is equational, second is reductional

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During meiosis crossing over takes place at

diakinesis stage

zygotene stage

diplotene stage

pachytene stage

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The shortest of mitotic phases is the

anaphase

telophase

interphase

metaphase

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In case of incomplete dominance, the phenotypic ratio of a monohybrid cross will be

1:2:1

1:1:2

3:1:1

1:3:1

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When an organism has a life cycle with alternation of generations, the haploid generation is the

gametophyte

sporophyte

gamete

zygote

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