Plant Breeding

Q. Regarding assertion and reason, select the correct option
Assertion: Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with the roots of all cereal and pulse crops.
Reason: A gene incorporated in the bacterial chromosomal gene gets automatically transferred to the crop with which the bacterium is associated.

1. Both the assertion and reason are true but the assertion is not the correct explanation of the reason.
2. Assertion is true but the reason is false
3. Both the assertion and reason are false.
4. Both the assertion and reason are true and the reason is the correct explanation for the assertion.

Q.

What is the difference between euploidy and aneuploidy?

Q.

Describe the methods of asexual reproduction?

Q.

How many carbon atoms are present in arachidonic acid?

Q. What is progeny ?? Expain it and what is hybrid ??

Q.

What is the F₂ generation?

Q.

How do mosses vegetatively reproduce?

Q. Hybrid vigour is mostly due to

1. Heterozygosity
2. Superiority of all the genes
3. Mixing of the male and the female cytoplasm
4. Homozygosity of the pure characters

Q.

Is Bacillus Thuringiensis A Biocontrol Agent?

Q.

Which of the following statements is not correct regarding plant breeding?

1. It provides somaclonal variation.

2. It reduces the dependence on fungicides and bactericides.

3. It involves the self-pollination of plants.

4. It is independent of germplasm collection.

Q.

Which gene is used in nitrogen fixation?

Q.

The full form of IARI

1. Testing, release and commercialization of new cultivars
2. Collection and preservation of wild varieties, species and their relatives
3. Selection of superior recombinants
4. Evaluation and selection of parents

Q.

Asexual reproduction in which an organism breaks into two or more parts.

1. Binary

2. Budding

3. Fragmentation

4. Vegetative propagation

Q.

Pieces of plant used in tissue culture are called

1. explants

2. somaclone

3. clone

4. inoculants

Q.

What is bacillus?

Q. All plants of a pure line have

1. Same genotype
2. Similar phenotype
3. Same phenotype and different genotype
4. Same genotype and drastically different phenotypes

Q.

Selection of homozygous plant is_______.

1. mass selection

2. pure line selection

3. mixed selection

4. none of the above

Q.

How many linkage groups are there in garden pea?

Q.

Which cannot be explained by Lamarckism?

1. Loss of tails by humans

2. Elongation of neck in Giraffe

3. Weak progeny of a noble laureate

4. None of the above

Q.

Which of the following is not industrial waste?

1. Mining operations

2. Oil refineries

3. Cement industries

4. Pesticides and fertilisers

Q.

A small piece of tissue taken for tissue culture

Q.

A hybrid is an individual or a variety obtained by crossbreeding two genetically dissimilar plants or animals.

1. True
2. False

Q. A hybrid with desirable traits is obtained by of pure lines of selected parents.

1. self-pollination
2. self-fertilisation
3. cross-hybridisation

Q. Bt brinjal variety is developed by using the gene isolated from _________________.

1. Lactobacillus acidophilus
2. Bacillus thuringiensis
3. Escherichia coli
4. Vibrio cholerae

Q. Bt cotton is genetically modified to _______.

1. to prevent diseases
2. to prevent pest infestation
3. to become drought resistant
4. to become cold resistant

Q. Planaria reproduces through

प्लेनेरिया जनन करता है

1. Sporulation
   
   बीजाणु समासंघ द्वारा
2. Fission
   
   विखंडन द्वारा
3. Regeneration
   
   पुनरूद्भवन द्वारा
4. Budding
   
   मुकुलन द्वारा

Q.

Jaya and Ratna are examples of ___________ varieties.

1. Maize

2. Rice

3. Wheat

4. Barley

Q.

The genotype of an individual can be best determined by the test cross.

1. True
2. False

Q.

Is golden rice biofortified?

Q.

1. Genes of two different crops are recombined to form hybrids of various crops

2. Applied biotechnology is used in agriculture field to improve yield and variety

1. Both the Statements are True

2. Statement 1 is true statement 2 is false

3. Both the Statements are false

4. Statement 1 is false statement 2 is true