Samacheer Kalvi EM 12 Bio - Botany Unit10 Chapter9 MCQs Mock Test
byJunaid Baig0-
12th Bio - Botany Mock Test
Chapter 9: Plant Breeding
Choose the correct answer from the multiple choices, then click "Next" to goto next question and click "OK" after seeing the score.
Assertion: Genetic variation provides the raw material for selection. Reason: Genetic variations are differences in genotypes of the individuals.
Assertion is right and reason is wrong.
Assertion is wrong and reason is right.
Both reason and assertion is right.
Both reason and assertion is wrong.
While studying the history of domestication of various cultivated plants __________ were recognized earlier.
Centres of origin
Centres of domestication
Centres of hybrid
Centres of variation
Pick out the odd pair.
Mass selection – Morphological characters
Purline selection – Repeated self pollination
Clonal selection – Sexually propagated
Natural selection – Involves nature
Match Column I with Column II
i – I, ii – II, iii – III, iv – IV
i – III, ii – I, iii – IV, iv – II
i – IV, ii – II, iii – I, iv – IV
i – II, ii – IV, iii – III, iv – I
The quickest method of plant breeding is
Introduction
Selection
Hybridization
Mutation breeding
Desired improved variety of economically useful crops are raised by
natural selection
hybridization
mutation
biofertilisers
Plants having similar genotypes produced by plant breeding are called
clone
haploid
autopolyploid
genome
Importing better varieties and plants from outside and acclimatising them to local environment is called
cloning
heterosis
selection
introduction
Dwarfing gene of wheat is
pall
Atomita 1
Norin 10
pelita 2
Crosses between the plants of the same variety are called
interspecific
intervarietal
intravarietal
intergeneric
Progeny obtained as a result of repeat self pollination a cross pollinated crop to called
pure line
pedigree line
inbreed line
heterosis
Jaya and Ratna are the semi dwarf varieties of
wheat
rice
cowpea
mustard
Which one of the following are the species that are crossed to give sugarcane varieties with high sugar, high yield, thick stems and ability to grow in the sugarcane belt of North India?
Saccharum robustum and Saccharum officinarum
Saccharum barberi and Saccharum officinarum
Saccharum sinense and Saccharum officinarum
Saccharum barberi and Saccharum robustum
Match column I (crop) with column II (Corresponding disease resistant variety) and select the correct option from the given codes.
iv, iii, ii, i
ii, i, iii, iv
ii, iv, i, iii
i, iii, iv, ii
A wheat variety, Atlas 66 which has been used as a donor for improving cultivated wheat, which is rich in
iron
carbohydrates
proteins
vitamins
Which one of the following crop varieties correct matches with its resistance to a disease?
Pusa Komal - Bacterial blight
Pusa Sadabahar - White rust
Pusa Shubhra - Chilli mosaic virus
Brassica - Pusa swarnim
Which of the following is incorrectly paired?
Wheat – Himgiri
Milch breed – Sahiwal
Rice – Ratna
Pusa Komal – Brassica
Match list I with list II:
i - c, ii - a, iii - b, iv - d
i - d, ii - c, iii - a, iv - b
i - a, ii - c, iii - b, iv - d
i - b, ii - a, iii - d, iv - c
Samacheer Kalvi EM 12th Std Bio - Botany Unit 10 Chapter 9 MCQs Mock Test Instructions
Chapter 9: Plant Breeding
Here you will find 18 MCQs questions and options. Read the questions carefully and select the appropriate answer for the question by selecting/clicking the box before the option. A pop-up box will open by displaying the result of the option selected. The result of each question will be based on percentages. Each question will have 3 chances to select the right option and for every chance, the percentage of scores will be reduced. Likewise, the remaining questions also take place. The overall percentage scored will be displayed at the completion of the mock test.
Note: Every time the page loads, the question and options will be randomized and takes you to the beginning of the particular exercise.
Button Navigations:
The Below Image shows the button navigations.
The Home Button On the Top and Bottom Navigates to the Homepage of the Subject (Example: To Bio - Botany if the mock test is taken from Bio - Botany).
The Next Chapter Button on the Top and Bottom Navigates to the Next Chapter (Example: From Chapter 9 to Chapter 10 and so on).
The Prev Chapter Button on the Top and Bottom Navigates to the Prev Chapter (Example: From Chapter 9 to Chapter 8 and so on).
The Next Button next to the question numbers Navigates to the Next Question (Example: From 1 to 2 and so on).
The Show All Questions Button Displays all the questions and options of that exercise on a single page.
The Option Box Icon (Box with Question mark icon), is the box that is to be selected for the correct option. By selecting/clicking the option box, a pop-up box will open by displaying the result of the option selected.
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