A male and female of the same type reproducing makes a species?
Answer:
Two nutritional mutants have been identified in a new species of yeast, which are not able to thrive on minimal media, however, both of them can live on media added with pyruvate. It has been witnessed that mutant strain 2 does not possess the tendency to grow in the existence of PEP. This shows that it does not comprise the enzyme that transforms PEP to pyruvate.
However, on the other hand, the mutant strain 1 possesses the tendency to grow in the existence of PEP and it also possesses the enzyme that transforms PEP to pyruvate. Therefore, second strain exhibits a mutation in pyruvate kinase, while mutation in strain 1 is found in some other gene, that is, apart from pyruvate kinase.
The awnser is true.
just some words to get the 20 leyter count
The correct answer is option D
The growth of algal bloom is caused due to excessive runoff rich in the nutrients like nitrogen and phosphorous. This run off comes from the agricultural field.
These nutrients aids in the growth of the algae(microorganisms) in large number. This growth forms a layer on the water body and use the oxygen present in the water and makes the water oxygen deficient.
Answer:
Selective breeding increases the frequency of favorable gene combinations associated with a particular phenotypic trait
Explanation
Selective breeding, also known as artificial selection, is a method for improving phenotypic traits in plants or animals by mating individuals with specific desirable hereditary traits and then select offspring that have better performance for these traits. This technique is effective only when the parental population used for selection exhibits genetic variability for the trait to be selected. The sheep's wool is a quantitative trait, i.e., a phenotypic characteristic that depends on the cumulative effects of many genes and the environment. In this case, the artificial selection will consist of obtaining sheep with increased production of wool, which is achieved by selecting favorable gene combinations for improved trait performance.
