Plant Pathology - Study Mode
[#206] Bacteria with cell wall are included in
Correct Answer
(A) Tenricutes
Explanation
Solution: Bacteria with cell walls are included in Tenericutes. Tenericutes are a unique class of bacteria that lack a cell wall and are typically parasites or commensals of eukaryotic hosts. Tenericutes species were detected across a range of environments, including mud, bioreactors, hypersaline lake sediment, and groundwater. The non-human hosts of Tenericutes included marine animals, domestic animals and fungi.
[#207] Who advanced the gene for gene concept of disease resistance and susceptibility
Correct Answer
(A) Flor
Explanation
Solution: Flor advanced the gene-for-gene concept of disease resistance and susceptibility. In 1942, Harold Flor deduced that a single gene of this fungal pathogen was responsible for the ability of the fungus to cause disease on the flax plant. He also determined that this gene in the fungus corresponded to a particular resistance gene in the flax plant. This interaction was called the gene-for-gene theory. It states that (specificity) genes in the pathogen that determine pathogenicity have a one-to-one corresponding match to (specificity) genes in the host that determine resistance.
[#208] Bees are important to agriculture as they
Correct Answer
(B) Perform pollination
Explanation
Solution: Bees are important to agriculture as they Perform pollination. According to bee experts at the Food and Agriculture Organization (FAO) of the United Nations, a third of the world's food production depends on bees. As they travel from one plant to another plant, bees deposit pollen on the female reproductive organs of new plants. This transfer of pollen in the trees allows for fertilization. When animals and insects pick up the pollen of flowers and spread it, they allow plants, including many food crops, to reproduce.
[#209] Nitrogen is an important constituents of
Correct Answer
(B) Proteins
Explanation
Solution: Nitrogen is an important constituent of Proteins. Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. The building blocks of proteins are amino acids, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds.
[#210] Silica gel was 1 st developed for preservation of
Correct Answer
(C) Neurospora
Explanation
Solution: Silica gel was 1 st developed for the preservation of Neurospora. Silica gel is an amorphous and porous form of silicon dioxide (silica), consisting of an irregular tridimensional framework of alternating silicon and oxygen atoms with nanometer-scale voids and pores. Silica gel is sometimes used as a preservation tool to control relative humidity in museum and library exhibitions and storage.