TN State Board Samacheer Kalvi Online Test for 12th Std - Biology - English - Plant Breeding

Question 1 Of 10

Which of the following is incorrectly paired?

Wheat – Himgiri Milch breed – Sahiwal Rice – Ratna Pusa Komal – Brassica

Question 2 Of 10

Match Column I with Column II

i -III, ii-I, iii-IV, iv-II

Question 3 Of 10

Importing better varieties and plants from outside and acclimatising them to local environment is called

cloning heterosis selection introduction

Question 4 Of 10

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

Question 5 Of 10

The quickest method of plant breeding is

Introduction Selection Hybridization Mutation breeding

Question 6 Of 10

Assertion : Genetic variation provides the raw material for selection.

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.

Question 7 Of 10

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

Question 8 Of 10

Crosses between the plants of the same variety are called

interspecific inter varietal intra varietal inter generic

Question 9 Of 10

Plants having similar genotypes produced by plant breeding are called

clone haploid autopolyploid genome

Question 10 Of 10

A Wheat variety, Atlas 66 which has been used as a donor for improving cultivated wheat, which is rich in

iron carbohydrates proteins vitamins

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Biology - English Medium - Plant Breeding

Samacheer Kalvi 12th Biology - Plant Breeding - Book Back Questions in English Medium