Answer:
The correct answer will be- the color change will be observed and the solution will turn purplish-black.
Explanation:
Iodine test is performed to test the presence of the carbohydrates mainly starch.
The iodine solution is chemically called potassium iodide which forms a yellow solution. The potassium iodide solution forms a complex with a starch solution which appears a purplish-black color which shows the presence of the carbohydrates.
In the given question, if we add the iodine solution to the beaker after a certain point of time then it will still form a complex with the starch and thus beaker solution will appear darker in color.
Answer: Representative of his cognitive development.
The preschool period refers to the years the age between 3 and 5 years considered as the preschool period. In this period Physical development occurs at slower pace than cognitive and psychosocial development. The maturation of brain of preschoolers continues. They demonstrate their ability to think more complexly by classifying objects by questioning. Children become aware of cause-and-effect relationships.
evaporates, less - is the ant
Answer:
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Explanation:
One method is to microinject deoxyribonucleic acid (DNA) into eggs; another method is to use vortex mixing to create tiny holes in the eggs through which DNA enters.
<h3>Process of gene transfer</h3>
Genetic engineering techniques are steps that are taken to create a genetically modified organism that can be used for studies. This technique involves the following major steps:
- Isolation of DNA fragments from a donor organism,
- The insertion of an isolated donor DNA fragment into a vector genome; and
- The growth of a recombinant vector in an appropriate host.
The insertion of an isolated donor DNA fragment into a vector genome can be done through microinjection method or vortex mixing.
When eggs are used as vector genome, microinjection of DNA can be carried out or vortex mixing can be used to create tiny holes in the eggs through which DNA enters.
Learn more about DNA here:
brainly.com/question/21265857
