Ripe strawberries are an excellent source for extracting DNA because they are easy to pulverize and contain enzymes called pectinases and cellulases that help to break down cell walls. And most important, strawberries have eight copies of each chromosome (they are octoploid), so there is a lot of DNA to isolate.
What does DNA extracted from a strawberry look like?
Observe the line between the strawberry mixture and the alcohol. You will notice a white thread-like cloud appearing at this line. This is strawberry DNA. The DNA will clump together and float to the top of the alcohol layer.
What is unique about strawberry DNA?
Strawberries yield more DNA than any other fruit because they have eight copies of each type of chromosome. The long, thick fibers of DNA store the information for the functioning of the chemistry of life. DNA is present in every cell of plants and animals.
We intention extract DNA from fruit to investigate how it examines and feels. This procedure is identical to what scientists have to do before they can use the statement contained in this DNA. This announcement can be used to enhance crops so that they are more resistant to infection, insect invasion, or differences in climate.
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The type of stimulus following a behavior removes something that is unpleasant is the negative reinforcer.
Stimulus is any signal. This can be in the form of touch, smell, taste, etc. This stimulus triggers the nerve cells of the body that send to signals to the brain to generate a response. For example, when one person touches a hot utensil, the touch of heat acts as a stimulus, where the brain sends response in the form of instantly removal of the hand.
Negative reinforcement is the response towards a stimuli that has not yet been received. For example, taking a medicine before any disease appears is the acts of negative reinforcement.
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Hi! What are the possible answers?
Answer:
1 mental pictures that have no direct
relationship to the actual object you are
thinking about
2 to gain or obtain for yourself
3 a ranking system
4 perceptually distinct units of sound in a specified language that distinguish one word from another
5 to figure out or unscramble hidden
meaning
6 the aspects of a dream or fantasy
that you remember
Explanation:
#4 I don't see the match in what you posted but the definition of phoneme is what I wrote.
Answer:
The difference between Darwin and Lamark was that "D" . The mutations was understood by both, but Darwim was able to prove it " although this is a lot like answer C.
Explanation:
hope it helps !!
