TN State Board Samacheer Kalvi Online Test for 11th Std - Biology - English - Plant Breeding

Question 1 Of 10

Desired improved variety of economically useful crops are raised by

Natural selection hybridization mutation biofertilisers

Question 2 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

Question 3 Of 10

Dwarfing gene of wheat is

pal 1 Atomita 1 Norin 10 pelita 2

Question 4 Of 10

Plants having similar genotypes produced by plant breeding are called

clone haploid autopolyploid genome

Question 5 Of 10

Match Column I with Column II

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

Question 6 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 7 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 8 Of 10

Jaya and Ratna are the semi dwarf varieties of

wheat rice cowpea mustard

Question 9 Of 10

The quickest method of plant breeding is

Introduction Selection Hybridization Mutation breeding

Question 10 Of 10

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

cloning heterosis selection introduction

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Biology - English Medium - Plant Breeding

Samacheer Kalvi 11th Biology - Plant Breeding - Book Back Questions in English Medium