VITAMINS AND COENZYMES QUIZ

When do kinetochore microtubules pull chromosomes towards opposite spindle poles?

In anaphase A

In metaphase

In telophase

In anaphase B

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

Ac

Tam3

L1

All are found

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During meiosis crossing over takes place at

pachytene stage

zygotene stage

diplotene stage

diakinesis stage

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A plasmid used to introduce BT toxin into a plant cell

carries a bacterial gene with a plant promoter

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

causes the plant to produce opines

is toxic for the plant cell

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The shortest of mitotic phases is the

telophase

anaphase

interphase

metaphase

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

zygote

sporophyte

gamete

gametophyte

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When F1 plants are crossed with homozygous recessive plants, it is known as

criss-cross

test cross

para-cross

recessive cross

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

both divisions are equational

first division is reductional and second is equational

both divisions are reductional

first division is equational, second is reductional

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

1:1:2

1:3:1

3:1:1

1:2:1

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The homologous chromosomes follow the process of synopsis in the

leptotene

pachytene

diplotene

zygotene

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