Answer:
Some variation is passed on from parents to offspring, via genes, during reproduction. This is inherited variation. Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation
The correct answer is: taking a picture of yourself and of your reflection
This example above can be compared to copying mechanism of DNA-replication in which one strand of DNA (e.g. 3’-5’ orientation) is used as a template to make new strand with opposite orientation (5’-3’). Picture of yourself is a template and a picture of reflection is copied strand.
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Plant cells have a cell wall but animal cells have a cell membrane
Answer: B
Explanation:
If glucose and arsenate are both added to the cell extract, at first glycolysis will start.
In step one of glycolysis, glucose is phosphorylated to glucose-6-phosphate catalyzed by hexokinase which splits the ATP into ADP, and the Pi is added on to the glucose.
In step 3 of glycolysis, fructose-6-phosphate is further phosphorylated to fructose 1,6-bisphosphate. The enzyme is phosphofructokinase. This again involves hydrolysis of another ATP molecule.
A total of two ATP is used.
Step 6 in glycolysis reaction which involves generation of 2 ATP's molecules is inhibited by arsenate. Hence all other glycolytic reaction would not take place. Therefore no ATP is produced and pyruvate is not produced also.
ATP level decreases because ATP is only used up but no ATP is gained from the inhibited pathway. Also the inhibition of the step 6 enzyme cut short the pathway and pyruvate the end product of the pathway is not formed.