Tag: plant breeding

Quizzes (8) Questions (81)

Questions Related to plant breeding

Multiple choice botany plant breeding biotechnology for improved food quality plant breeding for food production

Which of the following plant produces beta-carotene naturally?

  1. Rice

  2. Tobacco

  3. Potato

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biofortification is the method in which the food is added or supplemented with the required nutrients. The staple crop like rice is fortified to produce the precursor of vitamin A. Golden rice is the transgenic rice in which beta-carotene synthesizing gene psy and crtl are incorporated by the help of genetic engineering. Beta-carotene is the precursor of the vitamin A. The consumption of the golden rice can help to prevent the deficiency disorders due to less intake of vitamin A. 

Thus, the correct answer is option A. 

Multiple choice botany plant breeding biotechnology for improved food quality plant breeding for food production

Which of the following agronomic trait can be fortified in beans?

  1. Virus resistance

  2. Heat tolerance

  3. Drought tolerance

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biofortification is the method in which the food is added or supplemented with the required nutrients. It is a process of breeding crops with higher levels of vitamins, minerals, proteins, and fat content. The beans are fortified with iron, proteins and other nutrients. In order to obtain more yield, breeding of the plant is performed to obtain the resistant variety of plants. Resistance to virus, heat and drought tolerance are some of the characteristics which are selected for breeding.

Thus, the correct answer is option D. 

Multiple choice botany plant breeding biotechnology for improved food quality plant breeding for food production

Zinc, iron and vitamin A deficiency can be sorted out by 

  1. Biofortification

  2. Bioremediation

  3. Biofertilizers

  4. Bioaugmentation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biofortification is the method in which the food is added or supplemented with the required nutrients. This process can be used for the production of the staple crops with higher levels of essential nutrients. The staple crops like wheat are fortified with zinc and the golden rice, rice is fortified to produce beta-carotene. Rice and sweet potato can be fortified with iron. The rural areas generally feed on the staple crops and suffer from nutrient deficiency. The consumption of this fortified crops will prevent the deficiency disorders and improve the health of the people in the rural areas. 

Thus, the correct answer is option A. 

Multiple choice botany plant breeding biotechnology for improved food quality plant breeding for food production

Orange super bananas is a common food produced by biofortification are common in areas where 

  1. Banana is a staple food

  2. Vitamin A deficiency prevails

  3. Vitamin D deficiency prevails

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biofortification is the method in which the food is added or supplemented with the required nutrients. The bananas are generally consumed by all the people. The regions where banana are used as staple food, the banana can be fortified with essential nutrients like beta-carotene production which is the precursor of vitamin A. Due to the presence of carotene, the colour of the banana is orange, and so called as the orange super bananas. The consumption of this banana can help to prevent the deficiency disorders due to less intake of vitamin A. 

Thus, the correct answer is option D. 

Multiple choice botany plant breeding biotechnology for improved food quality plant breeding for food production

Breeding of crops with high levels of minerals, vitamins and proteins is called

  1. Micropropagation

  2. Somatic hybridisation

  3. Biofortification

  4. Biomagnification
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biofortification is the correct term for breeding crops with higher levels of minerals, vitamins, and proteins. Biomagnification refers to toxin accumulation in food chains, somatic hybridization is a lab technique, and micropropagation is rapid cloning.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Which of the following is incorrectly paired?

  1. Wheat - Himgiri

  2. Milch - Sahiwal

  3. Rice - Ratna

  4. Pusa Komal - Brassica
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pusa Komal is a variety of cowpea (Vigna unguiculata). Developed by IARI, New Delhi and is resistant to bacterial blight diseases. It belongs to family Fabaceae.

So, the correct answer is 'Pusa Komal - Brassica'

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Resistance to $jassids$ in cotton plants and to cereal leaf beetle in wheat plants is due to _____________.

  1. Biochemical characters

  2. Physiological characters

  3. Morphological characters

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Resistance to jassids in cotton and cereal leaf beetle in wheat is primarily due to morphological characters, such as the presence of hairs (trichomes) on the leaves.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Hairy leaves of many plants are associated with ________________.

  1. Resistance to insect pests

  2. Resistance to viruses

  3. Resistance to fungi

  4. Resistance to bacteria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hairy leaves (trichomes) act as a physical barrier that prevents insects from landing, feeding, or laying eggs, thus providing resistance to pests.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Which of the following statements is correct regarding nectarless cotton varieties?

  1. They do not attract stem sawfly

  2. They are produced by mutation breeding

  3. They do not attract bollworms

  4. They attract cereal leaf beetle.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nectarless cotton varieties are known to be resistant to bollworms because the absence of nectar reduces the food source for the adult moths.

Multiple choice botany plant breeding plant breeding for disease resistance and insect resistance method of plant breeding for crop improvement plant breeding for food production

Maize generates resistance against stem borers by having ___________________.

  1. Low aspartic acid, high nitrogen and sugar content

  2. Low aspartic acid, sugar but high nitrogen content

  3. Low aspartic acid, nitrogen but low sugar content

  4. Low aspartic acid, low nitrogen and sugar content
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Maize resistance to stem borers is associated with high aspartic acid, low nitrogen, and low sugar content in the plant tissues.