Answer:
See explanation
Explanation:
In a situation whereby a plant is in an environment where light is not totally absent, the plant continues to photosynthesize at a slower rate.
Recall that photosynthesis is the process by which green plants make their own food in the presence of sunlight, chlorophyll, carbon dioxide and water.
In a low light, plants are forced to stretch towards the low light source. This is known as etiolation of plants.
Answer:
The correct answer will be option- A knock-out mutation results in a total absence of the mutated protein
Explanation:
A mutation refers to the change in the sequence of nucleotide in the DNA which could prove beneficial or harmful to the organism.
There are many mechanisms by which mutation is introduced in the gene which could be by:
1. Addition of nitrogenous bases in the DNA called addition mutation.
2. Deletion of nitrogenous bases in the DNA which leads to the loss of bases called deletion mutation.
3. The addition and deletion of the bases in the gene can disrupt the primary structure of the protein like in sickle cell anaemia.
4. The elimination or replacement of a gene by man-made technique is known as knockout mutation.
Since knockout mutation does not lead to the loss of mutated proteins, therefore, the option is the correct answer.
The correct answer is that it is warmed and moistened already in nose and mouth, at the very beginning, when it enters our body (answer a).
It needs to be filtered and warmed alredy before it enters further, because our internal organs are delicate and a dry, dirty air would cause damage to our lungs and other organs.
The alcoholic beverage that causes sharper increases in the blood alcohol concentration is Liquor. Blood alcohol concentration or the blood alcohol content is the percent of the blood that is concentrated with alcohol. For example a BAC of 0.10 means that 1% of the blood stream is composed of alcohol. It is important to note that a range of 0.35% to 0.4% of BAT represents a potentially lethal alcohol poisoning.
I think the answer is:
D.) endangered species extinction.
Hope this helps :)