Answer:
You basically look at it. Count up the atoms in the graphic or the equation below it.
Explanation:
You probably should've asked in the chemistry thread (though this is kind of like very basic biochemistry).
Left side: 2H₂O₂ means there should be a total of 4 hydrogen and 4 oxygen on both sides of the reaction.
Right side: 2H₂O means there are 4 hydrogen and 2 oxygen. Does that mean matter was not conserved? No! The right side also shows an additional O₂, which totals up to a grand 4 hydrogen and 4 oxygen on the right side.
As you can see, if all of the atoms are present in a balanced equation, you say matter is conserved.
<span>For prokaryotes, most regulatory proteins are negative and therefore turn genes off. It is beneficial by:
Vary the numbers of specific enzymes made (regulation of gene expression)
Slow, but can have a dramatic effect on metabolic activity
Regulate enzymatic pathways (feedback inhibition, allosteric control)
Rapid and can be fine-tuned, but if the enzyme system does not have this level of control, then it is useless
Prokaryotes are "simple," single celled organisms, so they have "simple" systems
Genes are grouped together based on similar functions into functional units called operons
MANY GENES UNDER ONE CONTROL!!!
There is one single on/off switch for the genes</span> The gene that contains information for the production for that particular enzyme is cut out from a normal person's DNA using special restriction enzymes, which produces 'sticky ends' on the gene. Next, a plasmid (a small molecule of DNA) is removed from a bacteria and mixed with the above gene in the presence of the same restriction enzyme to allow the human gene to fit into the plasmid. Then, heat / electricity is applied to the bacteria to open up the cell membrane so that the plasmid can enter the bacteria. This genetically modified bacteria, now being able to produce that particular enzyme, may be allowed to reproduce in large numbers for the large-scale production of that enzyme for human use.<span><span>answer for question 28
No change occurs in phenotype.
Some mutations don't have any noticeable effect on the phenotype of an organism. This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.</span><span>Small change occurs in phenotype.
A single mutation caused this cat's ears to curl backwards slightly.</span><span>Big change occurs in phenotype.
Some really important phenotypic changes, like DDT resistance in insects are sometimes caused by single mutations. A single mutation can also have strong negative effects for the organism. Mutations that cause the death of an organism are called lethals — and it doesn't get more negative than that.
answer for question 29
</span></span> <span>The gene that contains information for the production for that particular enzyme is cut out from a normal person's DNA using special restriction enzymes, which produces 'sticky ends' on the gene. Next, a plasmid (a small molecule of DNA) is removed from a bacteria and mixed with the above gene in the presence of the same restriction enzyme to allow the human gene to fit into the plasmid. Then, heat / electricity is applied to the bacteria to open up the cell membrane so that the plasmid can enter the bacteria. This genetically modified bacteria, now being able to produce that particular enzyme, may be allowed to reproduce in large numbers for the large-scale production of that enzyme for human use.
</span>answer for question 30
<span>Gene regulation is needed in the development of multi-cellular organisms because the complexity of animals and plants depends on a remarkable feature of the genetic control system. Cells have a memory: the genes a cell expresses and the way it behaves depend on the cell's past as well as its present environment.
</span>answer for question 31
<span>Pedigree shows genotypes and phenotypes being passed down by generations. Karyotypes show the chromosomes of an individual person
answer for question 32
</span>
A. Stretching your legs before a run. You're creating tension by applying force to pull your tendons and ligaments.
<span>The gastric lipase is more relaxed compared to the pancreatic lipase because it is only concerned with the breakdown and digestion of food that was ingested within the body. Unlike the pancreatic lipase that process and weed-out the unnecessary materials that are no longer needed by the body.</span>
The correct answer fro above statement is:
<h3> c. Half of all rainforest plants have been tested for their medicinal properties.</h3><h3>Explanation:</h3>
Twenty-five percent of the fresh components in cancer medications are particularly rainforest plants.Rainforests are essential because they serve control global climate trims and rain. Water that disappears from trees comes in other regions as rain.Twenty-five percent of Western pharmaceuticals are obtained from rainforest components. But since only a minute portion of rainforest organisms have been investigated, as the rainforest species escape so do possible remedies and therapies for life-threatening disorders.
