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Plant Genetics MCQ Questions & Answers

Plant Genetics MCQs : This section focuses on the "Plant Genetics". These Multiple Choice Questions (MCQs) should be practiced to improve the Plant Genetics skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

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

A. 600 kilobase
B. 1200 kilobase
C. 2400 kilobase
D. 3000 kilobase

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Question 2

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

A. zygote
B. gametophyte
C. gamete
D. sporophyte

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Question 3

Plant genetics is the study of genes, genetic variation, and heredity specifically in plants.

A. True
B. False

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Question 4

When do kinetochore microtubules pull chromosomes towards opposite spindle poles?

A. In anaphase A
B. In anaphase B
C. In metaphase
D. In telophase

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Question 5

Plants, like all known organisms, use DNA to pass on their traits.

A. True
B. False

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Question 6

During meiosis crossing over takes place at

A. zygotene stage
B. diplotene stage
C. diakinesis stage
D. pachytene stage

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Question 7

The shortest of mitotic phases is the

A. telophase
B. interphase
C. metaphase
D. anaphase

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Question 8

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

A. Ac
B. Tam3
C. L1
D. All of the above

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Question 9

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

A. 01:02:01
B. 03:01:01
C. 01:03:01
D. 01:01:02

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Question 10

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

A. Ac
B. Tam3
C. L1
D. All are found

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Question 11

The homologous chromosomes follow the process of synopsis in the

A. leptotene
B. zygotene
C. pachytene
D. diplotene

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Question 12

The earliest evidence of plant domestication found has been dated to 11,000 years before present in ancestral wheat.

A. True
B. False

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Question 13

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

A. test cross
B. recessive cross
C. criss-cross
D. para-cross

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Question 14

A plasmid used to introduce BT toxin into a plant cell

A. carries an antibiotic resistance gene that makes the plant resistant to antibiotics
B. causes the plant to produce opines
C. is toxic for the plant cell
D. carries a bacterial gene with a plant promoter

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Question 15

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

A. 1:2:1
B. 3:1:1
C. 1:3:1
D. 1:1:2

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Question 16

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

A. first division is equational, second is reductional
B. first division is reductional and second is equational
C. both divisions are reductional
D. both divisions are equational

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