Genetics And Plant Breeding MCQ Question and Answer | Agriculture MCQ Question

A selectively permeable membrane allows the movement of Solute only.
A selectively-permeable membrane is a membrane that allows only some substances and molecules to pass into or leave the cell.
It allows the passage of only certain types of molecules (solute molecules) through diffusion and occasionally by facilitated diffusion.

Tea, coffee, and mango seed cannot be conserved in seed banks because of their drastic loss in viability in moisture content below 12%.
A seed bank stores seeds to preserve genetic diversity; hence it is a type of gene bank. One is to preserve the genes that plant breeders need to increase the yield, disease resistance, drought tolerance, nutritional quality, taste, etc. of crops.
Seeds are living plants and keeping them viable over the long term requires adjusting storage moisture and temperature appropriately. As they mature on the mother plant, many seeds attain an innate ability to survive drying.

Fluid mosaic model state that the membrane is highly a mixture of phospholipids and proteins.
The biological model, which was devised by Seymour Jonathan Singer and Garth L. Nicolson in 1972, describes the cell membrane as a two-dimensional liquid that restricts the lateral diffusion of membrane components.
It is a lipid bilayer (two molecule thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded. The phospholipid bilayer gives fluidity and elasticity to the membrane.

1 : 10 and 1 : 20 is seed multiplication ratio in chickpea and wheat, respectively.
The seed multiplication ratio is the number of seeds to be produced from a single seed when it is sown and harvested.
At the time of release of a variety, a small quantity of seed normally known as nucleus seed is available with the plant breeder.

The concept of epigenesis was proposed by Wolf.
The embryologist Caspar Friedrich Wolff refuted preformationism in 1759 in favor of epigenesis, but this did not put an end to preformationism.
epigenesis is the process by which plants, animals, and fungi develop from a seed, spore, or egg through a sequence of steps in which cells differentiate and organs form.

The term genetics is coined by Bateson.
William Bateson (8^th August 1861 - 8^th February 1926) was an English biologist who was the first person to use the term genetics to describe the study of heredity and the chief populariser of the ideas of Gregor Mendel.
Genetics is the study of genes, genetic variation, and heredity in organisms. Trait inheritance and molecular inheritance mechanisms of genes are primary principles of genetics.

Synthesis of IAA in plants requires Zinc.
Plants also require zinc for the synthesis of tryptophan, a key amino acid in the synthesis of the auxin indoleacetic acid (IAA).
Therefore, zinc also operates in the control of plant development through its indirect action on auxins.

Star Link is most loosely related to Cry9.
StarLink is a brand of genetically modified maize containing two modifications a gene for resistance to glufosinate and a variant of the Bacillus thuringiensis (Bt) protein called Cry9C.
Cry9C had not been used in a GM crop before StarLink, causing heightened regulatory scrutiny.

The top cross-method was first suggested for the evaluation of inbreds by Davis (1927).
Davis suggested the top crosses methodology, which consists of combining a large number of inbred lines.
In the top cross, crosses are made between inbreds and either a tester or an open-pollinated variety. This is also known as an inbred-variety cross.

A : T ratio in one strand of DNA duplex is 2, and the ratio in the complementary strand will be 0.5.