Answer:
12:3:1
Explanation:
<em>The typical F2 ratio in cases of dominant epistasis is 12:3:1.</em>
<u>The epistasis is a form of gene interaction in which an allele in one locus interacts with and modifies the effects of alleles in another locus</u>. There are different types of epistasis depending on the type of alleles that are interacting. These include:
- Dominant/simple epistasis: Here, a dominant allele on one locus suppresses the expression of both alleles on another locus irrespective of whether they are dominant or recessive. Instead of the Mendelian dihybrid F2 ratio of 9:3:3:1, what is obtained is 12:3:1. Examples of this type of gene interaction are found in seed coat color in barley, skin color in mice, etc.
- Other types of epistasis include <em>recessive epistasis (9:3:4), dominant inhibitory epistasis (13:3), duplicate recessive epistasis (9:7), duplicate dominant epistasis (15:1), and polymeric gene interaction (9:6:1).</em>
Widespread use of pesticide has lead to the development of:
More pesticide-resistant insects.
Answer:
Initiators - identify the requirement for a product within the company
Influencers - provide specifications about the technology needed by the company
Buyers - handle the process of choosing the vendor and negotiating the price
Explanation:
The buying centre of an organisation consists of 7 different member namely Initiators, Users, Buyers, Influencers, Deciders, Approvers, Gate Keepers.
- Initiators are the person who are first to suggests or initiates of the idea of buying the particular service or product.
- Influencer are the whose views or idea influence the decision making process. These influencers could be qualified engineers, technical personnel, consultants.
- Buyers are the persons who takes care of the the person who handles the paper work of the actual purchase.These buyers plays a vital role in choosing vendors. Sometimes they also helps in shaping the product specifications.
<span>The hormone which is being produced under a water-deficit condition which triggers a drought response is known as Abscisic Acid or ABA.
Abscisic acid is termed as a plant hormone. The main functions in the development of plants include
1. Stomatal closure.
2. Control of organ size.
3. Bud dormancy.
It responds to environmental stresses in plants, which include heat stress, freezing tolerance, cold tolerance, soil salinity, and drought.</span>
