Practice Plant Breeding Questions and Answers

• Which of the following acid is used as a preservative in bread preparation method along with sorbic acid?
• The stages through which a cell passes from one division to the next is called the cell cycle. Cell cycle is divided into two phases called -  Interphase ...
• Flowers do not open at all which ensures complete self pollination in
• Self pollination leads to a very rapid increase in ……………………….
• When styles and filaments in a flower are of different length, such condition is known as
• Almost all gymnosperms are generally ……………………. In nature
• The absence  of  functional  pollen grains  in  otherwise hermaphrodite flowers can be defined as
• When pollen from a flower of one plant falls on the stigmas of other flowers of the same plant, as in Maize is known as
• ______________ is a form of asexual reproduction in plants where seeds are produced without the involvement of meiosis or fertilization. In this process, t...
• Who gave the term “Heterosis” in 1914?
• Which of the following statement is false regarding Heterosis?
•  The level of heterosis is generally ……………… in cross pollinated species and ……………… in self-pollinated species...
• Which among the following factors is/are not essential for commercial exploitation of heterosis?
• The hybrid progeny of single cross and an inbred lines is called
• ………………………………. provides maximum opportunity for the breeder to use his skills for selection of desirable plants from segregating gen...
• In backcross method of breeding,   the   hybrid   and   the   progenies   in   the   subsequent   generation   are   repeatedly backc...
• In Pure lines election a large number of plants are selected from a ………………… and harvested individually
• In   the   pedigree   method,   individual   plants   are   selected   from   …………….. and subsequent generations, and their pro...
• …………… method helps in maintaining high genetic variability in a population due to repeated intermating of heterozygous plants/populations....
• In Bulk breeding method, individual plant  selection  is  done  after  population  attains ………………....
• A technique of genetic  engineering  in  which  a DNA probe is hybridized with DNA of a species to determine similarities and differences between two D...
• In DNA fingerprinting large quantity of DNA (5-10 mg) is required and markers are ………………………
• Indirect selection of a genetic determinant or determinants of a trait of interest by a marker is done in
• ……………………………… studies are   used   for   identification   of biochemical markers....
• SSRs are randomly repeated mono, di, tri, tetra, penta, and hexa nucleotide motifs. SSRs is another term for ……………….....
• Principle hydrogen producing bacteria is
• A method of asexual propagation in which a stem is made to produce roots while still attached to the parent plant is called
• Which mode of reproduction involves the formation of plants without the fusion of male and female gametes?
• What is the genetic term used to describe mating between individuals related by descent or ancestry?
• Which term describes the condition when the stamens and pistils of hermaphrodite flowers mature at different times, facilitating cross-pollination?
• The term that describes a gene's ability to produce different degrees of the same trait?
• What term is used to describe the phenomenon when a gene influences two or more characters that are not related?
• During which phase of mitosis do chromosomes align along the equatorial plane of the cell?
• Which method is primarily used for genetic improvement in highly heterozygous, asexually propagated species like sugarcane and potato?
• Which tomato variety was developed specifically for prolonged storage and transportation?
• Which mechanism refers to the presence of unisexual flowers on separate plants, as seen in plants like papaya and spinach?
• In a specific flowering plant, the pink flower color is not due to a Mendelian single-gene interaction but rather appears to be due to multiple genes actin...
• Law which is demonstrated by a 3:1 phenotypic ratio in the F2 generation of a monohybrid cross?
• What is the expected phenotypic ratio in the F2 generation of a dihybrid cross according to Mendel’s law?
• Which type of culture is described as growing in a liquid medium that is agitated to facilitate aeration and dissociation of cell clumps?