Genetics And Plant Breeding - Study Mode
[#446] Flavr savr' is associated with
Correct Answer
(B) Tomato
Explanation
Solution: Flavr savr' is associated with Tomato. Flavr Savr (pronounced "flavour saver"), a genetically modified tomato, was the first commercially grown genetically engineered food to be granted a license for human consumption. It was developed by the Californian company Calgene in the 1980s. The tomato has an improved shelf-life, increased fungal resistance, and a slightly increased viscosity compared to its non-modified counterpart. It was meant to be harvested ripe for increased flavour for long-distance shipping.
[#447] The coloured tag used for breeder seed is
Correct Answer
(D) Golden yellow
Explanation
Solution: The coloured tag used for breeder seed is Golden yellow. This is also a hundred percent physical and genetic pure seed for the production of foundation seed. A golden yellow colour certificate is issued for this category of seed by the producing breeder. The breeder seed tag is 12 × 6 cm in size. For each bag of seeds, a single tag is usually supplied. Label number, crop, variety, seed class, lot number, date of the test, pure seed percent, inert matter percent, germination percent, and producing institution are all included on the label.
[#448] Cabbage is cross pollinated owing to
Correct Answer
(C) Self incompatibility
Explanation
Solution: Cabbage is cross-pollinated owing to Self-incompatibility. Self-incompatibility in plants is an adaptation that promotes cross-pollination. Self-incompatibility (SI) is defined as the inability to produce zygotes after self-pollination in a fertile hermaphrodite plant, which has stamens and pistils in the same flower. Cabbage is a cross-pollinated crop because of sporophytic self-incompatibility, and honey bees play an important role in its pollination.
[#449] Plants grown upon the other plants without absorbing food from them are called
Correct Answer
(B) Epiphytes
Explanation
Solution: Plants that grow up on other plants without absorbing food from them are called Epiphytes. Epiphyte, also called air plant, is any plant that grows upon another plant or object merely for physical support. Epiphytes have no attachment to the ground or other obvious nutrient sources and are not parasitic on the supporting plants. It derives its moisture and nutrients from the air, rain, water (in marine environments), or debris accumulating around it.
[#450] Reverse genetics means
Correct Answer
(A) DNA sequence to phenotype
Explanation
Solution: Reverse genetics means DNA sequence to phenotype. Reverse genetics is a method in molecular genetics that is used to help understand the function of a gene by analyzing the phenotypic effects caused by genetically engineering specific nucleic acid sequences within the gene. The process proceeds in the opposite direction to forward genetic screens of classical genetics.