Plant Breeding

Q. Which statement is correct about the centre of origin of plants?

1. Wild or domesticated varieties developed their distinct characters
2. Frequency of dominant genes is more
3. Climatic conditions more favorable
4. None of the above

Q.

Transferring and combination of desirable characteristic features into plants and multiplying them is called:

1. Eugenics

2. Plant breeding

3. Genetic engineering

4. Crop improvement

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: All life on earth derives energy from plants
Reason [R]: Plants are the primary producers being able to produce their own food. All living organisms are directly or indirectly dependant on plants for food

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. Plant breeding involvesimprovement of crops to create desired plant types.

1. physical
2. genetic
3. chemical
4. seasonal

Q.

One of the synthetic auxins is:

1. IBA

2. NAA

3. IAA

4. GA

Q. Choose the characteristic of a crop which is NOT desired for plant breeding.

1. Adaptability for all weather conditions
2. High-yielding plant varieties
3. Disease-free plant varieties
4. Develop plants with low nutritional level

Q.

Central Sugarcane Breeding Research Institute is located at:

1. Delhi

2. Lucknow

3. Bhopal

4. Coimbatore

Q. Modification and adjustment of an organism to local environment is called_________

1. introduction
2. selection
3. acclimatisation
4. quarantine

Q. Wonder is a new wheat variety developed by

1. Mexico’s International Wheat and Maize Improvement Centre
2. Indian National Botanical Research Institute
3. Australian Crop Improvement Centre
4. African Crop Improvement Centre

Q. Match the following columns and choose the correct option.
$\begin{array}{cc}ColumnI& ColumnII\\ \text{(a) Mutation breeding}& \text{1. Laborious and expensive}\\ & \text{process to obtain gene}\\ & \text{variation}\\ \text{(b) Selection}& \text{2. Hybrid vigour can be}\\ & \text{maintained for several}\\ & \text{generations}\\ \text{(c) Hybridisation}& \text{3. Planting a plant in a new locality from its native place}\\ & \\ \text{(d) Introduction}& \text{4. Oldest breeding method}\\ & \text{5. Quick method to obtain gene variation}\end{array}$

1. $\begin{array}{ccccc}& A& B& C& D\\ \left(a\right)& 5& 4& 1& 2\end{array}$
2. $\begin{array}{ccccc}& A& B& C& D\\ \left(b\right)& 5& 4& 1& 3\end{array}$
3. $\begin{array}{ccccc}& A& B& C& D\\ \left(c\right)& 4& 2& 3& 1\end{array}$
4. $\begin{array}{ccccc}& A& B& C& D\\ \left(d\right)& 1& 2& 4& 5\end{array}$

Q. Which of the following are the objectives of plant breeding?

1. Increasing the nutritional quality
2. To decrease tolerance to salinity
3. High-yielding
4. Disease-free

Q. Which statement is correct about the centre of origin of plants?

1. Wild or domesticated varieties developed their distinct characters
2. Frequency of dominant genes is more
3. Climatic conditions more favorable
4. None of the above

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: Plant breeding leads to improvement of crop plants
Reason [R]: Plant breeding dates back to 9, 000 to 11, 000 years ago

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. Which of the following wheat varieties were developed in India?

1. IR-8
2. Sonalika
3. Kalyan Sona
4. Taichung Native-1

Q. Maximum genetic variation can be created through

1. introduction and hybridization
2. introduction, hybridization and selection
   
3. introduction, mutation, hybridization and genetic engineering
4. selection and mutation

Q. Match the following columns and choose the correct option.
$\begin{array}{cc}ColumnI& ColumnII\\ \text{(a) Mutation breeding}& \text{1. Laborious and expensive}\\ & \text{process to obtain gene}\\ & \text{variation}\\ \text{(b) Selection}& \text{2. Hybrid vigour can be}\\ & \text{maintained for several}\\ & \text{generations}\\ \text{(c) Hybridisation}& \text{3. Planting a plant in a new locality from its native place}\\ & \\ \text{(d) Introduction}& \text{4. Oldest breeding method}\\ & \text{5. Quick method to obtain gene variation}\end{array}$

1. $\begin{array}{ccccc}& A& B& C& D\\ \left(a\right)& 5& 4& 1& 2\end{array}$
2. $\begin{array}{ccccc}& A& B& C& D\\ \left(b\right)& 5& 4& 1& 3\end{array}$
3. $\begin{array}{ccccc}& A& B& C& D\\ \left(c\right)& 4& 2& 3& 1\end{array}$
4. $\begin{array}{ccccc}& A& B& C& D\\ \left(d\right)& 1& 2& 4& 5\end{array}$

Q. Artificial hybridisation is done by the process of self pollination.

1. False
2. True