Tag: plant breeding for food production

Questions Related to plant breeding for food production

Aim of plant breeding is to

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Control pollution

  2. Keep soil fertile

  3. Produce improved varieties

  4. To maintain wild plants

Show answer
Correct Option: C

Four inbred/pure lines of Maize are crossed. The cross is

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Double cross

  2. Dihybrid cross

  3. Tetrahybrid cross

  4. Tetraploid cross

Show answer
Correct Option: C

A cybrid is hybrid carrying

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Genomes and cytoplams of two different plants

  2. Cytoplasms of two different plants

  3. Cytoplasms of two different plants but genome of one plant

  4. Genomes of two different plants

  5. Cytoplasms of several plants but genomes of two plants.

Show answer
Correct Option: C

Branch of biology dealing with improvement of plant variety

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Eugenics

  2. Plant breeding

  3. Agrology

  4. Serendipity

Show answer
Correct Option: B

From which technique, new and better varieties of crop plants are formed

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Selection

  2. Hybridisation

  3. Grafting

  4. Hybridisation followed by selection.

Show answer
Correct Option: D

During hybridisation, offspring with hybrid vigour superior to both parents are self pollinated for a few successive generations to .............

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Retain their parental characters

  2. Remove their parental characters

  3. Get homozygosity

  4. Segregate characters.

Show answer
Correct Option: C

During somatic hybridisation in plants

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Somaclones are produced in large numbers

  2. Apical meristems are cultured to get virus-free plant

  3. Cell walls and middle lamella are digested before fusing the cells

  4. Crop plants with higher levels of vitamins, proteins, and minerals are hybridised.

Show answer
Correct Option: C

For hybridisation, which part is removed from bisexual flowers

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Stigma

  2. Stigma and style

  3. Anthers

  4. Ovary.

Show answer
Correct Option: C

Consider the following statements: Hybrid plants can show.
a. Sterility
b. Mosaicism
c. Crossing over
d. Vigour
e. Homozygosis
Which of the statements are correct?

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. $2, 3$ and $5$

  2. $2, 4$ and $5$

  3. $1, 2$ and $4$

  4. $1, 3$ and $4$

Show answer
Correct Option: A

Plant breeders are interested in apomixes because it __________________.

botany plant breeding method of plant breeding for crop improvement plant breeding for food production biotechnology

  1. Improves seed-set

  2. Shortens the life cycle

  3. Yields clonal progeny

  4. None of these

Show answer
Correct Option: A